build(deps-dev): bump @types/firebase-token-generator (#2201)

Bumps [@types/firebase-token-generator](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/firebase-token-generator) from 2.0.29 to 2.0.30.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/firebase-token-generator)

---
updated-dependencies:
- dependency-name: "@types/firebase-token-generator"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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