Bump core from 1.1.0 to 1.2.0

Bumps core from 1.1.0 to 1.2.0.

build.gradle

@@ -295,7 +295,7 @@ dependencies {
     // dependencies for local unit tests
     testImplementation 'junit:junit:4.12'
     testImplementation 'org.mockito:mockito-core:2.28.2'
-    testImplementation 'androidx.test:core:1.1.0'
+    testImplementation 'androidx.test:core:1.2.0'
     testImplementation 'org.powermock:powermock-core:2.0.2'
     testImplementation 'org.powermock:powermock-module-junit4:2.0.2'
     testImplementation 'org.powermock:powermock-api-mockito2:2.0.2'