Update dependency firebase-admin to v12.5.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
firebase-admin (source)	12.4.0 -> 12.5.0

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Release Notes

firebase/firebase-admin-node (firebase-admin)

v12.5.0: Firebase Admin Node.js SDK v12.5.0

Compare Source

New Features

• feat(rc): SSRC targeting (#​2665)

Bug Fixes

• fix: updating comments with VibrateTimingsMillis and defaultVibrateTimings instead of vibrate_timings and default_vibrate_timings (#​2598)
• fix: support httpAgent in JwksFetcher (#​2689)

Miscellaneous

• [chore] Release 12.5.0 Take 2 (#​2703)
• [chore] Release 12.5.0 (#​2702)
• chore: Upgrade actions/upload-artifact@v4 (#​2700)
• build(deps): bump actions/download-artifact in /.github/workflows (#​2694)
• Create CHANGELOG.md (#​2626)

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