[9.0] Unskip discover async search test (#204827) (#213968)

# Backport

This will backport the following commits from `main` to `9.0`:
- [Unskip discover async search test
(#204827)](https://github.com/elastic/kibana/pull/204827)

<!--- Backport version: 9.6.6 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Lukas
Olson","email":"lukas@elastic.co"},"sourceCommit":{"committedDate":"2025-03-11T16:24:22Z","message":"Unskip
discover async search test (#204827)\n\n## Summary\n\nResolves
https://github.com/elastic/kibana/issues/195955.\n\n###
Checklist\n\nCheck the PR satisfies following conditions. \n\nReviewers
should verify this PR satisfies this list as well.\n\n- [ ] Any text
added follows [EUI's
writing\nguidelines](https://elastic.github.io/eui/#/guidelines/writing),
uses\nsentence case text and includes
[i18n\nsupport](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)\n-
[
]\n[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)\nwas
added for features that require explanation or tutorials\n- [ ] [Unit or
functional\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\nwere
updated or added to match the most common scenarios\n- [ ] If a plugin
configuration key changed, check if it needs to be\nallowlisted in the
cloud and added to the
[docker\nlist](https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker)\n-
[ ] This was checked for breaking HTTP API changes, and any
breaking\nchanges have been approved by the breaking-change committee.
The\n`release_note:breaking` label should be applied in these
situations.\n- [ ] [Flaky
Test\nRunner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1)
was\nused on any tests changed\n- [ ] The PR description includes the
appropriate Release Notes section,\nand the correct `release_note:*`
label is applied per
the\n[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)\n\n###
Identify risks\n\nDoes this PR introduce any risks? For example,
consider risks like hard\nto test bugs, performance regression,
potential of data loss.\n\nDescribe the risk, its severity, and
mitigation for each identified\nrisk. Invite stakeholders and evaluate
how to proceed before merging.\n\n- [ ] [See some
risk\nexamples](https://github.com/elastic/kibana/blob/main/RISK_MATRIX.mdx)\n-
[ ] ...\n\nCo-authored-by: Matthias Wilhelm
<matthias.wilhelm@elastic.co>","sha":"93adbd8c0e6ad864c8e735525e9eba854830ed8c","branchLabelMapping":{"^v9.1.0$":"main","^v8.19.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["Feature:Search","release_note:skip","Team:DataDiscovery","backport:prev-minor","v9.1.0"],"title":"Unskip
discover async search
test","number":204827,"url":"https://github.com/elastic/kibana/pull/204827","mergeCommit":{"message":"Unskip
discover async search test (#204827)\n\n## Summary\n\nResolves
https://github.com/elastic/kibana/issues/195955.\n\n###
Checklist\n\nCheck the PR satisfies following conditions. \n\nReviewers
should verify this PR satisfies this list as well.\n\n- [ ] Any text
added follows [EUI's
writing\nguidelines](https://elastic.github.io/eui/#/guidelines/writing),
uses\nsentence case text and includes
[i18n\nsupport](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)\n-
[
]\n[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)\nwas
added for features that require explanation or tutorials\n- [ ] [Unit or
functional\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\nwere
updated or added to match the most common scenarios\n- [ ] If a plugin
configuration key changed, check if it needs to be\nallowlisted in the
cloud and added to the
[docker\nlist](https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker)\n-
[ ] This was checked for breaking HTTP API changes, and any
breaking\nchanges have been approved by the breaking-change committee.
The\n`release_note:breaking` label should be applied in these
situations.\n- [ ] [Flaky
Test\nRunner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1)
was\nused on any tests changed\n- [ ] The PR description includes the
appropriate Release Notes section,\nand the correct `release_note:*`
label is applied per
the\n[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)\n\n###
Identify risks\n\nDoes this PR introduce any risks? For example,
consider risks like hard\nto test bugs, performance regression,
potential of data loss.\n\nDescribe the risk, its severity, and
mitigation for each identified\nrisk. Invite stakeholders and evaluate
how to proceed before merging.\n\n- [ ] [See some
risk\nexamples](https://github.com/elastic/kibana/blob/main/RISK_MATRIX.mdx)\n-
[ ] ...\n\nCo-authored-by: Matthias Wilhelm
<matthias.wilhelm@elastic.co>","sha":"93adbd8c0e6ad864c8e735525e9eba854830ed8c"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/204827","number":204827,"mergeCommit":{"message":"Unskip
discover async search test (#204827)\n\n## Summary\n\nResolves
https://github.com/elastic/kibana/issues/195955.\n\n###
Checklist\n\nCheck the PR satisfies following conditions. \n\nReviewers
should verify this PR satisfies this list as well.\n\n- [ ] Any text
added follows [EUI's
writing\nguidelines](https://elastic.github.io/eui/#/guidelines/writing),
uses\nsentence case text and includes
[i18n\nsupport](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)\n-
[
]\n[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)\nwas
added for features that require explanation or tutorials\n- [ ] [Unit or
functional\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\nwere
updated or added to match the most common scenarios\n- [ ] If a plugin
configuration key changed, check if it needs to be\nallowlisted in the
cloud and added to the
[docker\nlist](https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker)\n-
[ ] This was checked for breaking HTTP API changes, and any
breaking\nchanges have been approved by the breaking-change committee.
The\n`release_note:breaking` label should be applied in these
situations.\n- [ ] [Flaky
Test\nRunner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1)
was\nused on any tests changed\n- [ ] The PR description includes the
appropriate Release Notes section,\nand the correct `release_note:*`
label is applied per
the\n[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)\n\n###
Identify risks\n\nDoes this PR introduce any risks? For example,
consider risks like hard\nto test bugs, performance regression,
potential of data loss.\n\nDescribe the risk, its severity, and
mitigation for each identified\nrisk. Invite stakeholders and evaluate
how to proceed before merging.\n\n- [ ] [See some
risk\nexamples](https://github.com/elastic/kibana/blob/main/RISK_MATRIX.mdx)\n-
[ ] ...\n\nCo-authored-by: Matthias Wilhelm
<matthias.wilhelm@elastic.co>","sha":"93adbd8c0e6ad864c8e735525e9eba854830ed8c"}}]}]
BACKPORT-->

Co-authored-by: Lukas Olson <lukas@elastic.co>

x-pack/test/search_sessions_integration/tests/apps/discover/async_search.ts

@@ -30,8 +30,7 @@ export default function ({ getPageObjects, getService }: FtrProviderContext) {
   const toasts = getService('toasts');
   const dataGrid = getService('dataGrid');
 
-  // FLAKY: https://github.com/elastic/kibana/issues/195955
-  describe.skip('discover async search', () => {
+  describe('discover async search', () => {
     before(async () => {
       await esArchiver.loadIfNeeded('x-pack/test/functional/es_archives/logstash_functional');
       await kibanaServer.importExport.load(