Prevent Trusted Types tests to run when the API does not exist

[dwyfrequency]

Check if trusted types exists in the browser before running tests that stub the API stubbing

For example, Firefox still has not implemented the API, see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/trusted-types#browser_compatibility

[changeset-bot]

⚠️ No Changeset found

Latest commit: dca0cdb

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (1d6771e) and merge commit (e7bd13b).

Test Logs

• Base (1d6771e): https://github.com/firebase/firebase-js-sdk/actions/runs/4704785514
• Merge (e7bd13b): https://github.com/firebase/firebase-js-sdk/actions/runs/4705218331

1. https://storage.googleapis.com/firebase-sdk-metric-reports/sX9OvQq0MH.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (1d6771e) and merge commit (e7bd13b).

Test Logs

• Base (1d6771e): https://github.com/firebase/firebase-js-sdk/actions/runs/4704785514
• Merge (e7bd13b): https://github.com/firebase/firebase-js-sdk/actions/runs/4705218331

1. https://storage.googleapis.com/firebase-sdk-metric-reports/DtMptYABwv.html