test(bidi): fix large screenshot test

[hbenl]

Note that the screenshot size limit was recently increased in Firefox, so this could be increased in Juggler as well.

[github-actions]

Test results for "tests 1"

4 failed
❌ [playwright-test] › playwright.trace.spec.ts:345 › should retain traces for interrupted tests @macos-latest-node20
❌ [playwright-test] › test-step.spec.ts:1106 › should report expect steps @macos-latest-node20
❌ [playwright-test] › to-have-screenshot.spec.ts:191 › should have scale:css by default @macos-latest-node20
❌ [playwright-test] › to-have-screenshot.spec.ts:238 › should report toHaveScreenshot step with expectation name in title @macos-latest-node20

4 flaky

⚠️ [chromium-library] › library/popup.spec.ts:258 › should not throw when click closes popup `@chromium-ubuntu-22.04-arm-node20`
⚠️ [firefox-library] › library/inspector/cli-codegen-1.spec.ts:1082 › cli codegen › should not throw csp directive violation errors `@firefox-ubuntu-22.04-node20`
⚠️ [firefox-page] › page/page-wait-for-function.spec.ts:104 › should work with strict CSP policy `@firefox-ubuntu-22.04-node20`
⚠️ [playwright-test] › ui-mode-trace.spec.ts:812 › should update state on subsequent run `@macos-latest-node20`

38550 passed, 843 skipped

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Merge workflow run.

[github-actions]

Test results for "MCP"

3 failed
❌ [chromium] › mcp/cli-session.spec.ts:184 › list --all lists sessions from all workspaces @mcp-windows-latest
❌ [chromium] › mcp/roots.spec.ts:47 › check that trace is saved in workspace @mcp-windows-latest
❌ [chrome] › mcp/launch.spec.ts:21 › test reopen browser @mcp-macos-15

4880 passed, 135 skipped

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Merge workflow run.