Bump mockitoVersion from 3.8.0 to 3.9.0

Bumps `mockitoVersion` from 3.8.0 to 3.9.0.

Updates `mockito-core` from 3.8.0 to 3.9.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](https://github.com/mockito/mockito/compare/v3.8.0...v3.9.0)

Updates `mockito-android` from 3.8.0 to 3.9.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](https://github.com/mockito/mockito/compare/v3.8.0...v3.9.0)

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

build.gradle

@@ -60,7 +60,7 @@ ext {
     prismVersion = "2.0.0"
     butterknifeVersion = "10.2.3"
     androidLibraryVersion = "master-SNAPSHOT"
-    mockitoVersion = "3.8.0"
+    mockitoVersion = "3.9.0"
     mockkVersion = "1.10.4"
     powermockVersion = "2.0.9"
     byteBuddyVersion = "1.10.22"