Grant CREATEDB and CREATEROLE to memory role on hermes-pgdb

The memory user needs CREATEDB and CREATEROLE privileges to install
the pgvector extension on the agent_memory database.

apps/base/customer1/hermes-db/pg-cluster-hermes.yaml

@@ -35,6 +35,8 @@ spec:
       - name: memory
         ensure: present
         login: true
+        createdb: true
+        createrole: true
         passwordSecret:
           name: memory-db-credentials