devops: add a hint how to create a repro

[yury-s]

Fixes #29620

[mxschmitt]

nit: maybe also give line 49 more love.

[github-actions]

Test results for "tests 1"

8 flaky

⚠️ [chromium] › library/tracing.spec.ts:243:5 › should not include trace resources from the previous chunks
⚠️ [chromium] › library/tracing.spec.ts:243:5 › should not include trace resources from the previous chunks
⚠️ [chromium] › library/tracing.spec.ts:243:5 › should not include trace resources from the previous chunks
⚠️ [firefox] › library/tracing.spec.ts:243:5 › should not include trace resources from the previous chunks
⚠️ [playwright-test] › ui-mode-test-ct.spec.ts:215:5 › should watch component via util
⚠️ [chromium] › library/tracing.spec.ts:243:5 › should not include trace resources from the previous chunks
⚠️ [webkit] › library/tracing.spec.ts:243:5 › should not include trace resources from the previous chunks
⚠️ [webkit] › page/page-goto.spec.ts:277:3 › should fail when navigating to bad SSL after redirects

26580 passed, 613 skipped
✔️✔️✔️

Merge workflow run.