Merge pull request #10508 from nextcloud/masterBump3.22

Bump master to 3.22 Alpha0

app/build.gradle

@@ -56,7 +56,7 @@ configurations.configureEach {
 
 // semantic versioning for version code
 def versionMajor = 3
-def versionMinor = 21
+def versionMinor = 22
 def versionPatch = 0
 def versionBuild = 0 // 0-50=Alpha / 51-98=RC / 90-99=stable