[gradle]: Bump androidx.test.ext:junit-ktx from 1.1.5 to 1.2.1 in /packages/shared_preferences/shared_preferences_android/android (#8097)

Bumps androidx.test.ext:junit-ktx from 1.1.5 to 1.2.1.

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Author: dependabot[bot]

packages/shared_preferences/shared_preferences_android/android/build.gradle

@@ -63,7 +63,7 @@ android {
         implementation 'androidx.datastore:datastore-preferences:1.0.0'    
         testImplementation 'junit:junit:4.13.2'
         testImplementation 'androidx.test:core-ktx:1.5.0'
-        testImplementation 'androidx.test.ext:junit-ktx:1.1.5'
+        testImplementation 'androidx.test.ext:junit-ktx:1.2.1'
         testImplementation 'org.robolectric:robolectric:4.12.1'
         testImplementation 'org.mockito:mockito-inline:5.2.0'
         testImplementation 'io.mockk:mockk:1.13.13'