update galaxy.yml with new version

Author: Deutsche Telekom MMS

galaxy.yml

@@ -1,7 +1,7 @@
 ---
 namespace: telekom_mms
 name: ansible_collection_icinga
-version: 2.2.1
+version: 3.0.0
 readme: README.md
 authors:
   - Christopher Grau <c.grau@telekom.de>