Update actions/checkout action to v3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v2 -> v3

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Release Notes

actions/checkout

v3

Compare Source

• Upgrade codeql actions to v2
• Upgrade dependencies
• Upgrade @​actions/io

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Configuration

📅 Schedule: Branch creation - "before 3am on Friday" (UTC), Automerge - At any time (no schedule defined).

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[changeset-bot]

⚠️ No Changeset found

Latest commit: 8a2a37f

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (a8d6499) and merge commit (66bdaed).

Test Logs

• Base (a8d6499): https://github.com/firebase/firebase-js-sdk/actions/runs/4569683173
• Merge (66bdaed): https://github.com/firebase/firebase-js-sdk/actions/runs/4570554447

1. https://storage.googleapis.com/firebase-sdk-metric-reports/VAbI1j2SRk.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (a8d6499) and merge commit (66bdaed).

Test Logs

• Base (a8d6499): https://github.com/firebase/firebase-js-sdk/actions/runs/4569683173
• Merge (66bdaed): https://github.com/firebase/firebase-js-sdk/actions/runs/4570554447

1. https://storage.googleapis.com/firebase-sdk-metric-reports/MQe5auF5Lt.html