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

Author: renovate[bot]

app/build.gradle

@@ -46,7 +46,7 @@ dependencies {
     implementation 'androidx.preference:preference-ktx:1.1.1'
 
     testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.2.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
 
     implementation "androidx.room:room-runtime:2.3.0"