Merge pull request #6816 from nextcloud/dependabot/gradle/androidx.test-core-1.3.0

Bump core from 1.2.0 to 1.3.0

build.gradle

@@ -353,7 +353,7 @@ dependencies {
     // dependencies for local unit tests
     testImplementation 'junit:junit:4.13'
     testImplementation 'org.mockito:mockito-core:3.4.6'
-    testImplementation 'androidx.test:core:1.2.0'
+    testImplementation 'androidx.test:core:1.3.0'
     testImplementation 'org.powermock:powermock-core:2.0.7'
     testImplementation 'org.powermock:powermock-module-junit4:2.0.7'
     testImplementation 'org.powermock:powermock-api-mockito2:2.0.7'