Update dependency androidx.test.ext:junit to v1.2.1

Author: renovate[bot]

WebViewSample/app/build.gradle

@@ -41,7 +41,7 @@ dependencies {
     implementation 'com.google.android.material:material:1.6.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
     testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.ext:junit:1.2.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
 
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.1"