Merge pull request #6969 from nextcloud/dependabot/gradle/mockitoVersion-3.5.11

Bump mockitoVersion from 3.5.10 to 3.5.11

build.gradle

@@ -64,7 +64,7 @@ ext {
     prismVersion = "2.0.0"
     butterknifeVersion = "10.2.3"
     androidLibraryVersion = "master-SNAPSHOT"
-    mockitoVersion = "3.5.10"
+    mockitoVersion = "3.5.11"
     espressoVersion = "3.3.0"
 
     travisBuild = System.getenv("TRAVIS") == "true"