Version Bump to 1.9.0.3 (DEV) (#1837)

Co-authored-by: Ralf Gehrer <ralfgehrer@users.noreply.github.com>
Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>

gradle.properties

@@ -20,4 +20,4 @@ org.gradle.dependency.verification.console=verbose
 VERSION_MAJOR=1
 VERSION_MINOR=9
 VERSION_PATCH=0
-VERSION_BUILD=2
+VERSION_BUILD=3