fix: rename pgpooler to include rw

- undo previous change (target pgcluster name)
- actually rename the pgpooler

apps/base/paperclip/cnpg_pooler.yaml

@@ -2,11 +2,11 @@
 apiVersion: postgresql.cnpg.io/v1
 kind: Pooler
 metadata:
-  name: paperclip-pooler
+  name: paperclip-pooler-rw
   namespace: paperclip
 spec:
   cluster:
-    name: paperclip-postgres-rw
+    name: paperclip-postgres
   instances: 2
   pgbouncer:
     parameters: