- Upgraded Firestore and Storage dependencies to their latest versions. As a result the following updates were also needed.
- Upgrade TypeScript to 4.x [breaking change!]
- Update the target settings in tsconfig. Since we drop support for Node.js 12, adopted the optimal settings for Node.js 14.
- Dropped support for Node.js 12 and updated the CIs to run on Node.js 14. Will also add Node.js 16 in a future PR.

Bumps [@firebase/database-types](https://github.com/firebase/firebase-js-sdk/tree/HEAD/packages/database-types) from 0.9.8 to 0.9.9.
- [Release notes](https://github.com/firebase/firebase-js-sdk/releases)
- [Changelog](https://github.com/firebase/firebase-js-sdk/blob/master/packages/database-types/CHANGELOG.md)
- [Commits](https://github.com/firebase/firebase-js-sdk/commits/@firebase/database-types@0.9.9/packages/database-types)

---
updated-dependencies:
- dependency-name: "@firebase/database-types"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

)

…#1764)

Breaking change: Dropped support for Node.js 12. Developers should use Node.js 14 or higher when deploying the Admin SDK.

Breaking change: Upgraded TypeScript to v4.6.4.

Breaking change: Upgraded the @google-cloud/firestore package to v5. This contains breaking changes. Refer to the Cloud Firestore release notes for more details.

Breaking change: Upgraded the @google-cloud/storage package to v6. This contains breaking changes. Refer to the Cloud Storage release notes for more details.