Merge pull request #9907 from nextcloud/dependabot/gradle/mockkVersion-1.12.3

Bump mockkVersion from 1.12.2 to 1.12.3

build.gradle

@@ -68,7 +68,7 @@ ext {
     androidLibraryVersion = "master-SNAPSHOT"
     mockitoVersion = "4.3.1"
     mockitoKotlinVersion = "4.0.0"
-    mockkVersion = "1.12.2"
+    mockkVersion = "1.12.3"
     powermockVersion = "2.0.9"
     byteBuddyVersion = "1.12.8"
     espressoVersion = "3.4.0"