1.6.0 version bump (DEV) #1462

* CircleCI config change for streamlined RC naming

* Version bump

Co-authored-by: Ralf Gehrer <ralfgehrer@users.noreply.github.com>

gradle.properties

@@ -20,4 +20,4 @@ org.gradle.dependency.verification.console=verbose
 VERSION_MAJOR=1
 VERSION_MINOR=6
 VERSION_PATCH=0
-VERSION_BUILD=2
+VERSION_BUILD=3