Upgrade semver to 7.6.3

[dlarocque]

Semver is only used in scripts/release/prerelease.ts to check if the release name is valid.
The functions we use weren't changed in the diff: https://app.renovatebot.com/package-diff?name=semver&from=7.5.3&to=7.6.3

[changeset-bot]

⚠️ No Changeset found

Latest commit: 7b6d059

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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Click here to learn what changesets are, and how to add one.

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[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (beaa4df) and merge commit (81fd5d6).

Test Logs

• Base (beaa4df): https://github.com/firebase/firebase-js-sdk/actions/runs/11010045895
• Merge (81fd5d6): https://github.com/firebase/firebase-js-sdk/actions/runs/11038485001

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

[google-oss-bot]

Size Analysis Report ¹

Affected Products

No changes between base commit (beaa4df) and merge commit (81fd5d6).

Test Logs

• Base (beaa4df): https://github.com/firebase/firebase-js-sdk/actions/runs/11010045895
• Merge (81fd5d6): https://github.com/firebase/firebase-js-sdk/actions/runs/11038485001

1. https://storage.googleapis.com/firebase-sdk-metric-reports/PEXCfWAq0t.html