chore: add DevPlat as CodeOwners (#14)

* Update .repo-metadata.json

* Update .repo-metadata.json to include dev-play team as codeowners

* Update the CODEOWNERS file manually to add the DevPlat team

Author: Shabirmean

packages/google-cloud-binary-authorization/.github/CODEOWNERS

@@ -5,7 +5,7 @@
 # https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners#codeowners-syntax
 
 # The @googleapis/yoshi-python is the default owner for changes in this repo
-*               @googleapis/yoshi-python
+*               @googleapis/yoshi-python @googleapis/cicd
 
 
-/samples/   @googleapis/python-samples-owners
+/samples/   @googleapis/python-samples-owners

packages/google-cloud-binary-authorization/.repo-metadata.json

@@ -8,5 +8,6 @@
     "language": "python",
     "repo": "googleapis/python-binary-authorization",
     "distribution_name": "google-cloud-binary-authorization",
-    "api_id": "binaryauthorization.googleapis.com"
-    }
+    "api_id": "binaryauthorization.googleapis.com",
+    "codeowner_team": "@googleapis/cicd"
+    }