fix(deps): update dependency androidx.test.ext:junit to v1.2.1

Author: renovate[bot]

app/build.gradle

@@ -35,7 +35,7 @@ dependencies {
     implementation 'com.google.android.material:material:1.3.0'
     implementation 'de.hdodenhof:circleimageview:3.1.0'
     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 project(':openCVLibrary341')
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"