chore: fix the docs in google-cloud-deploy (#12338)

Towards #12326 🦕

See googleapis/gapic-generator-python#1776

Co-authored-by: ohmayr <omairnaveed@ymail.com>

packages/google-cloud-deploy/google/cloud/deploy_v1/types/cloud_deploy.py

@@ -2366,7 +2366,7 @@ class SkaffoldGCSSource(proto.Message):
         Attributes:
             source (str):
                 Required. Cloud Storage source paths to copy recursively.
-                For example, providing "gs://my-bucket/dir/configs/*" will
+                For example, providing `gs://my-bucket/dir/configs/*` will
                 result in Skaffold copying all files within the
                 "dir/configs" directory in the bucket "my-bucket".
             path (str):