docs: fix config.metadata docs

[Skn0tt]

Closes #34094

[github-actions]

Test results for "tests 1"

7 flaky

⚠️ [firefox-library] › library/trace-viewer.spec.ts:1184:1 › should ignore 304 responses @firefox-ubuntu-22.04-node18
⚠️ [firefox-page] › page/page-evaluate.spec.ts:403:3 › should throw for too deep reference chain @firefox-ubuntu-22.04-node18
⚠️ [playwright-test] › ui-mode-test-setup.spec.ts:98:5 › should show errors in config @macos-latest-node18-1
⚠️ [webkit-library] › library/proxy.spec.ts:125:3 › should authenticate @webkit-ubuntu-22.04-node18
⚠️ [webkit-library] › library/trace-viewer.spec.ts:109:1 › should show tracing.group in the action list with location @webkit-ubuntu-22.04-node18
⚠️ [webkit-page] › page/page-set-input-files.spec.ts:147:3 › should upload large file @webkit-ubuntu-22.04-node18
⚠️ [playwright-test] › ui-mode-test-watch.spec.ts:145:5 › should watch all @windows-latest-node18-1

37462 passed, 650 skipped
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Merge workflow run.