Merge pull request #12446 from nextcloud/renovate/mockkversion

Update mockkVersion to v1.13.9

build.gradle

@@ -11,7 +11,7 @@ buildscript {
         androidLibraryVersion = "master-SNAPSHOT"
         mockitoVersion = "4.11.0"
         mockitoKotlinVersion = "4.1.0"
-        mockkVersion = "1.13.8"
+        mockkVersion = "1.13.9"
         espressoVersion = "3.5.1"
         workRuntime = "2.8.1"
         fidoVersion = "4.1.0-patch2"