removing cloned_from_id key from template object (#16813)

removing cloned_from_id key from template

(cherry picked from commit de22c82)

tests/foreman/api/test_provisioningtemplate.py

@@ -187,7 +187,7 @@ def test_positive_end_to_end_crud(
         # clone
         template_origin = template.read_json()
         # remove unique keys
-        unique_keys = ('updated_at', 'created_at', 'id', 'name')
+        unique_keys = ('updated_at', 'created_at', 'id', 'name', 'cloned_from_id')
         template_origin = {
             key: value for key, value in template_origin.items() if key not in unique_keys
         }