chore: deprecate Debian 9 compatibility

meta/main.yml

@@ -19,8 +19,8 @@ galaxy_info:
   platforms:
     - name: Debian
       versions:
-        - 9
         - 10
+       #- 11
   galaxy_tags: []
     # List tags for your role here, one per line. A tag is a keyword that describes and categorizes the role. Users find roles by searching for tags. Be sure to remove the '[]' above, if you 
     # add tags to this list.