Bump androidTestVersion from 1.5.0 to 1.6.1

Bumps `androidTestVersion` from 1.5.0 to 1.6.1.

Updates `androidx.test:core` from 1.5.0 to 1.6.1

Updates `androidx.test:runner` from 1.5.0 to 1.6.1

Updates `androidx.test:monitor` from 1.5.0 to 1.6.1

---
updated-dependencies:
- dependency-name: androidx.test:core
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: androidx.test:runner
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: androidx.test:monitor
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

dependencies.gradle

@@ -28,7 +28,7 @@ ext {
   espressoCore = "androidx.test.espresso:espresso-core:$espressoVersion"
   espressoIdlingResource = "androidx.test.espresso:espresso-idling-resource:$espressoVersion"
 
-  androidTestVersion = '1.5.0'
+  androidTestVersion = '1.6.1'
   androidTestCore = "androidx.test:core:$androidTestVersion"
   androidTestRunner = "androidx.test:runner:$androidTestVersion"
   androidTestMonitor = "androidx.test:monitor:$androidTestVersion"