feat(firefox-beta): roll to r1456

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[github-actions]

Test results for "tests others"

2 failed
❌ [playwright-test] › reporter-html.spec.ts:296:5 › created › should include image diff when screenshot failed to generate due to animation
❌ [playwright-test] › ui-mode-test-setup.spec.ts:217:9 › web-mode: true › should run teardown with SIGINT

4 flaky

⚠️ [electron-page] › page/page-screenshot.spec.ts:892:3 › should throw if screenshot size is too large
⚠️ [electron-api] › electron/electron-tracing.spec.ts:37:5 › should support custom protocol
⚠️ [chromium-library] › library/trace-viewer.spec.ts:241:1 › should have network requests
⚠️ [playwright-test] › ui-mode-test-screencast.spec.ts:21:5 › should show screenshots

17647 passed, 587 skipped
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Merge workflow run.

[github-actions]

Test results for "tests 1"

28354 passed, 650 skipped
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Merge workflow run.

[github-actions]

Test results for "tests 2"

2 fatal errors, not part of any test
3 failed
❌ [chromium-page] › page/page-set-input-files.spec.ts:40:3 › should upload a folder
❌ [chromium-page] › page/page-set-input-files.spec.ts:40:3 › should upload a folder
❌ [chromium-page] › page/page-set-input-files.spec.ts:40:3 › should upload a folder

43 flaky

⚠️ [chromium-library] › library/inspector/cli-codegen-1.spec.ts:23:7 › cli codegen › should click
⚠️ [chromium-library] › library/browsercontext-viewport.spec.ts:145:12 › should drag with high dpi
⚠️ [chromium-library] › library/inspector/cli-codegen-3.spec.ts:531:7 › cli codegen › should consume pointer events
⚠️ [chromium-page] › page/locator-misc-1.spec.ts:21:3 › should hover @smoke
⚠️ [chromium-page] › page/page-mouse.spec.ts:193:3 › should trigger hover state with removed window.Node
⚠️ [chromium-library] › library/browsercontext-viewport.spec.ts:145:12 › should drag with high dpi
⚠️ [chromium-library] › library/video.spec.ts:382:5 › screencast › should capture navigation
⚠️ [chromium-page] › page/page-add-locator-handler.spec.ts:90:5 › should work with locator.hover()
⚠️ [chromium-page] › page/page-mouse.spec.ts:166:3 › should trigger hover state
⚠️ [chromium-page] › page/page-mouse.spec.ts:186:3 › should trigger hover state on disabled button
⚠️ [chromium-library] › library/emulation-focus.spec.ts:202:12 › should trigger hover state concurrently
⚠️ [chromium-page] › page/page-mouse.spec.ts:166:3 › should trigger hover state
⚠️ [chromium-page] › page/page-event-request.spec.ts:110:3 › should report navigation requests and responses handled by service worker
⚠️ [firefox-library] › library/video.spec.ts:165:5 › screencast › should work with old options
⚠️ [firefox-page] › page/page-mouse.spec.ts:166:3 › should trigger hover state
⚠️ [firefox-library] › library/video.spec.ts:165:5 › screencast › should work with old options
⚠️ [firefox-page] › page/page-add-locator-handler.spec.ts:90:5 › should work with locator.hover()
⚠️ [firefox-library] › library/browsercontext-basic.spec.ts:331:3 › should emulate media in cross-process iframe
⚠️ [firefox-library] › library/browsercontext-locale.spec.ts:118:3 › should be isolated between contexts
⚠️ [firefox-library] › library/browsercontext-service-worker-policy.spec.ts:26:5 › block › blocks service worker registration
⚠️ [firefox-library] › library/tracing.spec.ts:243:5 › should not include trace resources from the previous chunks
⚠️ [firefox-library] › library/tracing.spec.ts:292:5 › should overwrite existing file
⚠️ [firefox-page] › page/page-click-timeout-4.spec.ts:20:3 › should timeout waiting for stable position
⚠️ [firefox-page] › page/page-click.spec.ts:97:3 › should click the 1x1 div
⚠️ [chromium-page] › page/locator-misc-1.spec.ts:21:3 › should hover @smoke
⚠️ [chromium-page] › page/page-add-locator-handler.spec.ts:90:5 › should work with locator.hover()
⚠️ [chromium-page] › page/page-mouse.spec.ts:186:3 › should trigger hover state on disabled button
⚠️ [chromium-library] › library/inspector/cli-codegen-1.spec.ts:23:7 › cli codegen › should click
⚠️ [chromium-page] › page/page-event-request.spec.ts:139:3 › should report navigation requests and responses handled by service worker with routing
⚠️ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:324:7 › cli codegen › should fill [contentEditable]
⚠️ [webkit-page] › page/page-mouse.spec.ts:221:3 › should tween mouse movement
⚠️ [webkit-page] › page/page-set-input-files.spec.ts:40:3 › should upload a folder
⚠️ [webkit-library] › library/browsercontext-reuse.spec.ts:206:1 › should reset mouse position
⚠️ [webkit-library] › library/inspector/cli-codegen-3.spec.ts:383:7 › cli codegen › should generate getByTestId
⚠️ [webkit-library] › library/inspector/cli-codegen-3.spec.ts:444:7 › cli codegen › should generate getByAltText
⚠️ [webkit-library] › library/browsercontext-viewport.spec.ts:145:12 › should drag with high dpi
⚠️ [webkit-library] › library/inspector/cli-codegen-3.spec.ts:444:7 › cli codegen › should generate getByAltText
⚠️ [webkit-library] › library/inspector/cli-codegen-3.spec.ts:562:7 › cli codegen › should assert value
⚠️ [webkit-library] › library/inspector/cli-codegen-3.spec.ts:634:7 › cli codegen › should assert visibility
⚠️ [webkit-page] › page/page-click.spec.ts:230:3 › should click on checkbox input and toggle
⚠️ [webkit-library] › library/tracing.spec.ts:412:14 › should produce screencast frames scale
⚠️ [webkit-page] › page/page-request-fallback.spec.ts:221:5 › post data › should amend post data
⚠️ [webkit-library] › library/browsercontext-reuse.spec.ts:50:1 › should reset serviceworker

202312 passed, 9089 skipped, 1451 did not run
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Merge workflow run.