[google_sign_in_android] Downgrade Guava version from 33.3.0 to `32…

….0.1` (#7573)

This upgrade is causing issues with our use of R8. I think we should downgrade back, while we investigate what it takes to unblock this upgrade.

Fixes flutter/flutter#154489, 
related to #7571 (comment).

packages/google_sign_in/google_sign_in_android/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 6.1.30
+
+* Temporarily downgrades Guava from version 33.3.0 to 32.0.1 to fix an R8 related error.
+
 ## 6.1.29
 
 * Updates Guava to version 33.3.0.

packages/google_sign_in/google_sign_in_android/android/build.gradle

@@ -60,7 +60,7 @@ android {
 
 dependencies {
     implementation 'com.google.android.gms:play-services-auth:21.0.0'
-    implementation 'com.google.guava:guava:33.3.0-android'
+    implementation 'com.google.guava:guava:32.0.1-android'
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'org.mockito:mockito-inline:5.0.0'
 }

packages/google_sign_in/google_sign_in_android/pubspec.yaml

@@ -2,7 +2,7 @@ name: google_sign_in_android
 description: Android implementation of the google_sign_in plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/google_sign_in/google_sign_in_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+google_sign_in%22
-version: 6.1.29
+version: 6.1.30
 
 environment:
   sdk: ^3.4.0