Version 12.0.0
### 12.0.0
- Changes
- General: Update to Firebase C++ SDK version 12.0.0.
- General (Android): Update to Firebase Android BoM version 33.0.0.
- General (Android): Updated minSdkVersion to 23, and targetSdkVersion
and compileSdkVersion to 34.
- General (iOS): Update to Firebase Cocoapods version 10.25.0.
- General (iOS): Minimum iOS deployment target is now 13.0.
- General: Minimum supported editor version is now Unity 2020.
- Auth: Remove deprecated calls involving `SignInResult`, most of
which were appended with `_DEPRECATED`.
- Remote Config: Remove deprecated `ConfigSettings.MinimumFetchInternalInMilliseconds`,
use `ConfigSettings.MinimumFetchIntervalInMilliseconds` instead.