chore: fix rp config and codeowners

Author: GautamSharda

.github/CODEOWNERS

@@ -12,4 +12,5 @@
 /handwritten/storage @googleapis/gcs-team
 /handwritten/firestore @googleapis/firestore-team
 /handwritten/spanner @googleapis/spanner-team
-/handwritten/bigquery-storage @googleapis/bigquery-team/handwritten/pubsub @googleapis/pubsub-team
+/handwritten/bigquery-storage @googleapis/bigquery-team
+/handwritten/pubsub @googleapis/pubsub-team

release-please-submodules.json

@@ -32,7 +32,9 @@
     "handwritten/logging-winston": {
       "component": "logging-winston"
     },
-    "handwritten/pubsub": {},
+    "handwritten/pubsub": {
+      "component": "pubsub"
+    },
     "handwritten/spanner": {
       "component": "spanner"
     },