chore(deps): Bump google_sign_in

Bumps [google_sign_in](https://github.com/flutter/packages/tree/main/packages/google_sign_in) from 6.3.0 to 7.2.0.
- [Commits](https://github.com/flutter/packages/commits/google_sign_in-v7.2.0/packages/google_sign_in)

---
updated-dependencies:
- dependency-name: google_sign_in
  dependency-version: 7.2.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

modules/serverpod_auth/serverpod_auth_google_flutter/pubspec.yaml

@@ -15,7 +15,7 @@ dependencies:
     sdk: flutter
   serverpod_auth_client: 3.0.0-alpha.1
   serverpod_auth_shared_flutter: 3.0.0-alpha.1
-  google_sign_in: ^6.1.0
+  google_sign_in: ">=6.1.0 <8.0.0"
   web: '>=0.3.0 <2.0.0'
 
 dev_dependencies: