Add some redirect webdriver tests

[sam-gc]

There are still a lot more tests to write, but this is a proof of concept

[changeset-bot]

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Latest commit: e361683

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[google-oss-bot]

Binary Size Report

Affected SDKs

No changes between base commit (b6caa3f) and head commit (e60f911).

Test Logs

• Base (b6caa3fe): https://github.com/firebase/firebase-js-sdk/actions/runs/633168665
• Head (e60f9113): https://github.com/firebase/firebase-js-sdk/actions/runs/633173996

[google-oss-bot]

Size Analysis Report

Affected Products

No changes between base commit (b6caa3f) and head commit (e60f911).

Test Logs

• Base (b6caa3f): https://github.com/firebase/firebase-js-sdk/actions/runs/633168665
• Head (e60f911): https://github.com/firebase/firebase-js-sdk/actions/runs/633173996