[9.0] [ci] Bump jest disk to 80gb (#221116) (#221120)

# Backport

This will backport the following commits from `main` to `9.0`:
- [[ci] Bump jest disk to 80gb
(#221116)](https://github.com/elastic/kibana/pull/221116)

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

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

<!--BACKPORT
[{"author":{"name":"Jon","email":"jon@elastic.co"},"sourceCommit":{"committedDate":"2025-05-21T13:08:56Z","message":"[ci]
Bump jest disk to 80gb
(#221116)","sha":"d5e2aa961c9220108e3b736e199fd0c7b86daf4d","branchLabelMapping":{"^v9.1.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["Team:Operations","release_note:skip","skip-ci","backport:all-open","v9.1.0"],"title":"[ci]
Bump jest disk to
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Bump jest disk to 80gb
(#221116)","sha":"d5e2aa961c9220108e3b736e199fd0c7b86daf4d"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/221116","number":221116,"mergeCommit":{"message":"[ci]
Bump jest disk to 80gb
(#221116)","sha":"d5e2aa961c9220108e3b736e199fd0c7b86daf4d"}}]}]
BACKPORT-->

Co-authored-by: Jon <jon@elastic.co>

.buildkite/pipeline-utils/ci-stats/pick_test_group_run_order.ts

@@ -487,7 +487,7 @@ export async function pickTestGroupRunOrder() {
             key: 'jest',
             agents: {
               ...expandAgentQueue('n2-4-spot'),
-              diskSizeGb: 75,
+              diskSizeGb: 80,
             },
             retry: {
               automatic: [