Update timeout for starting browsers.

[yuchenshi]

It times out most of the time (4 out of 5) on my laptop.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 6fa0115

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[google-oss-bot]

Binary Size Report

Affected SDKs

No changes between base commit (b6080a8) and head commit (d531c5b).

Test Logs

• Base (b6080a85): https://github.com/firebase/firebase-js-sdk/actions/runs/633558483
• Head (d531c5b8): https://github.com/firebase/firebase-js-sdk/actions/runs/634220160

[google-oss-bot]

Size Analysis Report

Affected Products

No changes between base commit (b6080a8) and head commit (d531c5b).

Test Logs

• Base (b6080a8): https://github.com/firebase/firebase-js-sdk/actions/runs/633558483
• Head (d531c5b): https://github.com/firebase/firebase-js-sdk/actions/runs/634220160