[Security Solution] Fixed flaky Jest config: x-pack/plugins/security_solution/public/timelines

[YulNaumenko]

Resolves #143718

Summary of all failing tests
  | FAIL  x-pack/plugins/security_solution/public/timelines/components/timeline/body/index.test.tsx (193.525 s)
  | ● Body › rendering › it renders a tooltip for timestamp
  |  
  | thrown: "Exceeded timeout of 20000 ms for a test.
  | Use jest.setTimeout(newTimeout) to increase the timeout value, if this is a long-running test."
  |  
  | 192 \|     });
  | 193 \|
  | > 194 \|     test('it renders a tooltip for timestamp', async () => {
  | \|     ^
  | 195 \|       const headersJustTimestamp = defaultHeaders.filter((h) => h.id === '@timestamp');
  | 196 \|       const testProps = { ...props, columnHeaders: headersJustTimestamp };
  | 197 \|       const wrapper = mount(
  |  
  | at x-pack/plugins/security_solution/public/timelines/components/timeline/body/index.test.tsx:194:5
  | at x-pack/plugins/security_solution/public/timelines/components/timeline/body/index.test.tsx:159:3
  | at Object.<anonymous> (x-pack/plugins/security_solution/public/timelines/components/timeline/body/index.test.tsx:132:1)
  |  
 

<br class="Apple-interchange-newline">

The new time for expensive flaky tests is 21s:

Cleaned up the jest errors when running tests:

[kqualters-elastic]

None of the flaky results are the same ones saw in main, so if buildkite likes it lgtm 👍

[kqualters-elastic]

Unapproving until we figure out what's up with the body/index.test.tsx times

[machadoum]

LGTM! 🤩

Thank you for improving our tests.

[YulNaumenko]

@elasticmachine merge upstream

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 115d5d5

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
securitySolution	9.5MB	9.5MB	+528.0B

Unknown metric groups

ESLint disabled line counts

id	before	after	diff
securitySolution	438	441	+3

Total ESLint disabled count

id	before	after	diff
securitySolution	515	518	+3

History

• 💔 Build #82539 failed cb392a8
• 💔 Build #82368 failed 79e2d64
• 💔 Build #82340 failed d4d62d5
• 💔 Build #82332 failed 3b2c01f
• 💚 Build #82266 succeeded e90f0e0

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @YulNaumenko