[google_maps]: Bump rules

Bumps rules from 1.2.0 to 1.4.0.

---
updated-dependencies:
- dependency-name: androidx.test:rules
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

packages/google_maps_flutter/google_maps_flutter_android/android/build.gradle

@@ -37,7 +37,7 @@ android {
         implementation "androidx.annotation:annotation:1.1.0"
         implementation 'com.google.android.gms:play-services-maps:18.0.2'
         androidTestImplementation 'androidx.test:runner:1.2.0'
-        androidTestImplementation 'androidx.test:rules:1.2.0'
+        androidTestImplementation 'androidx.test:rules:1.4.0'
         androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
         testImplementation 'junit:junit:4.13.2'
         testImplementation 'org.mockito:mockito-core:4.6.1'