fix unit test

Author: egegunes

Diff for: internal/patroni/config_test.go

@@ -983,8 +983,8 @@ tags: {}
 	dataWithCustomMethods, err := instanceYAML(cluster, instance, nil)
 	assert.NilError(t, err)
 	assert.Equal(t, dataWithCustomMethods, strings.Trim(`
-# Generated by postgres-operator. DO NOT EDIT.
-# Your changes will not be saved.
+# Generated by postgres-operator. DO NOT EDIT UNLESS YOU KNOW WHAT YOU'RE DOING.
+# If you want to override the config, annotate this ConfigMap with pgv2.percona.com/override-config=true
 bootstrap:
   initdb:
   - data-checksums