Accept test command as argument to test_changed script

[dlarocque]

This allows us to run other tests with this script. The default is still test:ci.

We currently don't pass an argument to this script anywhere, so this has no immediate impact on our tests.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 83fdf4f

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (5718838) and merge commit (f1a371e).

Test Logs

• Base (5718838): https://github.com/firebase/firebase-js-sdk/actions/runs/13980377121
• Merge (f1a371e): https://github.com/firebase/firebase-js-sdk/actions/runs/13999836514

1. https://storage.googleapis.com/firebase-sdk-metric-reports/rmA7PF8kMf.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (5718838) and merge commit (f1a371e).

Test Logs

• Base (5718838): https://github.com/firebase/firebase-js-sdk/actions/runs/13980377121
• Merge (f1a371e): https://github.com/firebase/firebase-js-sdk/actions/runs/13999836514

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