[google_sign_in] Roll Guava dependency to 31.1 (#6746)

* Roll guava

* Metadata

Author: stuartmorgan-g

packages/google_sign_in/google_sign_in_android/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 6.1.4
+
+* Rolls Guava to version 31.1.
+
 ## 6.1.3
 
 * Updates play-services-auth version to 20.4.0.

packages/google_sign_in/google_sign_in_android/android/build.gradle

@@ -51,7 +51,7 @@ android {
 
 dependencies {
     implementation 'com.google.android.gms:play-services-auth:20.4.0'
-    implementation 'com.google.guava:guava:28.1-android'
+    implementation 'com.google.guava:guava:31.1-android'
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'org.mockito:mockito-inline:4.7.0'
 }

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/plugins/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: 6.1.3
+version: 6.1.4
 
 environment:
   sdk: ">=2.14.0 <3.0.0"