Release 0.21.0

What's Changed

Other Changes

• FirebaseAuth add updatePassword function by @IT-Guy007 in #105
• Add GoogleAuthProvider.credential(withIDToken:accessToken:) by @vincentborko in #104
• Fix Swift 6.4 Android linking for SkipFirebaseCore by @michele-theleftbit in #106

New Contributors

• @michele-theleftbit made their first contribution in #106

Full Changelog: 0.20.4...0.21.0