[ci] Create pipeline for chrome forward-testing against beta versions (#194682)

## Summary
Creates a pipeline for testing against `google-chrome-beta`.

- Uses the flag: `USE_CHROME_BETA` to switch functional tests to running
against chrome-beta.
- Uses the same pipeline file PR builds are using
- Only FTRs will be using `google-chrome-beta`, so other test types are
disabled
- [x] check if other test types (integration / cypress) can be directed
to `google-chrome-beta`.
  
  
Tested with the migration staging pipeline:
https://buildkite.com/elastic/kibana-migration-pipeline-staging/builds/164

Connected to: https://github.com/elastic/kibana-operations/issues/199

.buildkite/pipeline-resource-definitions/kibana-chrome-forward-testing.yml

@@ -0,0 +1,53 @@
+# yaml-language-server: $schema=https://gist.githubusercontent.com/elasticmachine/988b80dae436cafea07d9a4a460a011d/raw/rre.schema.json
+apiVersion: backstage.io/v1alpha1
+kind: Resource
+metadata:
+  name: bk-kibana-chrome-forward-testing
+  description: 'Chrome Forward Testing for Kibana'
+  links:
+    - url: 'https://buildkite.com/elastic/kibana-chrome-forward-testing'
+      title: Pipeline link
+spec:
+  type: buildkite-pipeline
+  system: buildkite
+  owner: 'group:kibana-operations'
+  implementation:
+    apiVersion: buildkite.elastic.dev/v1
+    kind: Pipeline
+    metadata:
+      name: kibana / chrome forward testing
+      description: 'Testing Kibana against upcoming versions of Chrome'
+    spec:
+      env:
+        # This is what will switch the FTRs pipeline to use Chrome Beta
+        USE_CHROME_BETA: 'true'
+        # Unit-tests don't depend on Chrome's versions, integration tests , so we don't need to run those
+        LIMIT_CONFIG_TYPE: 'functional'
+        SLACK_NOTIFICATIONS_CHANNEL: '#kibana-operations-alerts'
+        ELASTIC_SLACK_NOTIFICATIONS_ENABLED: 'true'
+
+      allow_rebuilds: true
+      branch_configuration: main
+      default_branch: main
+      repository: elastic/kibana
+      pipeline_file: .buildkite/scripts/pipelines/pull_request/pipeline.sh
+      skip_intermediate_builds: true
+      provider_settings:
+        prefix_pull_request_fork_branch_names: false
+        skip_pull_request_builds_for_existing_commits: true
+        trigger_mode: none
+      teams:
+        kibana-operations:
+          access_level: MANAGE_BUILD_AND_READ
+        appex-qa:
+          access_level: MANAGE_BUILD_AND_READ
+        kibana-tech-leads:
+          access_level: MANAGE_BUILD_AND_READ
+        everyone:
+          access_level: BUILD_AND_READ
+      # Scheduled runs for the pipeline
+      schedules:
+        Daily 12 pm UTC:
+          cronline: 0 12 * * *
+          message: Daily Chrome Forward Testing
+          branch: main

.buildkite/pipeline-resource-definitions/locations.yml

@@ -13,6 +13,8 @@ spec:
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-artifacts-snapshot.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-artifacts-staging.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-artifacts-trigger.yml
+    - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-chrome-forward-testing.yml
+    - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-codeql.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-coverage-daily.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-es-forward-testing.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-es-serverless-snapshots.yml
@@ -26,11 +28,12 @@ spec:
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-on-merge.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-performance-daily.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-performance-data-set-extraction-daily.yml
+    - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-pointer-compression.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-pr.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-purge-cloud-deployments.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-serverless-emergency-release.yml
-    - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-serverless-quality-gates.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-serverless-quality-gates-emergency.yml
+    - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-serverless-quality-gates.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-serverless-release-testing.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-serverless-release.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/scalability_testing-daily.yml
@@ -43,5 +46,3 @@ spec:
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/security-solution-quality-gate/kibana-serverless-security-solution-quality-gate-investigations.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/security-solution-quality-gate/kibana-serverless-security-solution-quality-gate-rule-management.yml
     - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/trigger-version-dependent-jobs.yml
-    - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-pointer-compression.yml
-    - https://github.com/elastic/kibana/blob/main/.buildkite/pipeline-resource-definitions/kibana-codeql.yml