chore: Use consistent product name for commons-operator

This change is done to be in line with our other "internal/core"
operators.

Author: Techassi

config/repositories.yaml

@@ -9,7 +9,7 @@ repositories:
 
   - name: commons-operator
     pretty_string: Stackable Commons
-    product_string: commons
+    product_string: commons-operator
     url: stackabletech/commons-operator.git
     config:
       include_productconfig: false