Bump firebase-ui-auth from 6.4.0 to 7.1.0

[dependabot-preview[bot]]

Bumps firebase-ui-auth from 6.4.0 to 7.1.0.

Release notes

Sourced from firebase-ui-auth's releases.

FirebaseUI for Android v7.1.0 is a minor release containing new features and bugfixes.

Changes:

• [Auth] Allow most auth flows on devices without Google Play services (#1858)
• [Auth] Add ability to setDefaultEmail to the EmailBuilder (#1670) (contributed by @laurentiu-git)
• [Firestore] Add ability to set data directly on FirestorePagingOptions (#1750) (contributed by @laurentiu-git)

FirebaseUI for Android v7.0.0 is a major release containing breaking changes. For full information about this version and how to upgrade, see the upgrade guide.

This version also contains the following new features or bugfixes:

• [Auth] Remove SupportVectorDrawablesButton (#1860) (contributed by @AryanNajafi)
• [Auth] Add AuthUI#useEmulator() method to use FirebaseUI with the Firebase Auth Emulator (#1849)

Commits

• 7f2d6a5 Version 7.1.0
• 94e1005 Version 7.1.0
• 39a8cf0 Added setDocumentSnapshot() for FirestorePagingOptions (#1869)
• 4c75c23 Added setDefaultEmail for EmailBuilder (#1866)
• a72885b Allow most auth flows without Play services (#1865)
• f59e133 Begin development on v7.1.0
• aef1d2f Version 7.0.0
• 8468aaf Clear changelog after release
• a5947d7 Version 7.0.0
• 0b36775 Docs for version 7.0 (#1863)
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Superseded by #220.