test(bidi): install libavcodec in CI for Firefox

[hbenl]

Fixes "should play video" in library/capabilities.spec.ts.

[github-actions]

Test results for "tests 1"

5 flaky

⚠️ [chromium-library] › library/video.spec.ts:680 › screencast › should capture full viewport on hidpi `@frozen-time-library-chromium-linux`
⚠️ [chromium-library] › library/chromium/chromium.spec.ts:371 › should produce network events, routing, and annotations for Service Worker `@realtime-time-library-chromium-linux`
⚠️ [chromium-library] › library/chromium/chromium.spec.ts:434 › should produce network events, routing, and annotations for Service Worker (advanced) `@chromium-ubuntu-22.04-node20`
⚠️ [firefox-library] › library/heap.spec.ts:223 › should not leak workers `@firefox-ubuntu-22.04-node20`
⚠️ [firefox-page] › page/page-emulate-media.spec.ts:144 › should keep reduced motion and color emulation after reload `@firefox-ubuntu-22.04-node20`

49519 passed, 1161 skipped

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Merge workflow run.

[github-actions]

Test results for "MCP"

1 fatal errors, not part of any test
38 failed
❌ [firefox] › mcp/annotate.spec.ts:447 › should switch screencast to -s session on show --annotate @mcp-macos-latest-firefox
❌ [webkit] › mcp/sse.spec.ts:194 › sse transport browser lifecycle (persistent) @mcp-macos-latest-webkit
❌ [webkit] › mcp/storage.spec.ts:21 › browser_storage_state unavailable @mcp-macos-latest-webkit
❌ [webkit] › mcp/storage.spec.ts:43 › browser_storage_state saves storage state to file @mcp-macos-latest-webkit
❌ [webkit] › mcp/storage.spec.ts:84 › browser_storage_state saves to custom filename @mcp-macos-latest-webkit
❌ [webkit] › mcp/storage.spec.ts:107 › browser_set_storage_state restores storage state from file @mcp-macos-latest-webkit
❌ [webkit] › mcp/storage.spec.ts:172 › --storage-state option works with remote endpoint in config @mcp-macos-latest-webkit
❌ [webkit] › mcp/storage.spec.ts:205 › browser_storage_state and browser_set_storage_state roundtrip @mcp-macos-latest-webkit
❌ [webkit] › mcp/tabs.spec.ts:36 › list initial tabs @mcp-macos-latest-webkit
❌ [webkit] › mcp/tabs.spec.ts:47 › list first tab @mcp-macos-latest-webkit
❌ [webkit] › mcp/tabs.spec.ts:60 › create new tab @mcp-macos-latest-webkit
❌ [webkit] › mcp/tabs.spec.ts:81 › create new tab with url @mcp-macos-latest-webkit
❌ [webkit] › mcp/tabs.spec.ts:94 › select tab @mcp-macos-latest-webkit
❌ [webkit] › mcp/tabs.spec.ts:123 › close tab @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:48 › test_debug (pause/resume) @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:90 › test_debug (browser_snapshot/network/console) @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:126 › test_debug (multiple pages and custom error) @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:167 › test_debug (pause/snapshot/resume) @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:215 › test_debug / evaluate @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:234 › test_debug / evaluate x 2 @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:275 › test_debug / evaluate (with element) @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:296 › test_debug / generate_locator @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:315 › test_debug w/ console.log in test @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:338 › test_debug w/ console_messages @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:382 › test_debug w/ network_requests @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:411 › test_debug w/ route @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-debug.spec.ts:457 › test_debug (custom fixture with browser.newContext) @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-setup.spec.ts:60 › setup should run global setup and teardown @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-setup.spec.ts:81 › test_run should run global setup and teardown @mcp-macos-latest-webkit
❌ [webkit] › mcp/test-setup.spec.ts:105 › test_debug should run global setup and teardown @mcp-macos-latest-webkit
❌ [webkit] › mcp/timeouts.spec.ts:19 › action timeout (default) @mcp-macos-latest-webkit
❌ [webkit] › mcp/timeouts.spec.ts:49 › action timeout (custom) @mcp-macos-latest-webkit
❌ [webkit] › mcp/timeouts.spec.ts:79 › wait_for text timeout @mcp-macos-latest-webkit
❌ [webkit] › mcp/timeouts.spec.ts:104 › wait_for textGone timeout @mcp-macos-latest-webkit
❌ [webkit] › mcp/timeouts.spec.ts:129 › navigation timeout @mcp-macos-latest-webkit
❌ [webkit] › mcp/tracing.spec.ts:21 › check that trace is saved with browser_start_tracing @mcp-macos-latest-webkit
❌ [webkit] › mcp/tracing.spec.ts:54 › check that trace is saved with browser_start_tracing (no output dir) @mcp-macos-latest-webkit
❌ [webkit] › mcp/tracing.spec.ts:87 › browser_stop_tracing without start returns error @mcp-macos-latest-webkit

7722 passed, 1249 skipped

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Merge workflow run.

[yury-s]

I think a more robust approach would be to pass --install-deps to the command below to ensure all deps are installed:

npx -y @puppeteer/browsers install firefox@nightly --install-deps