fix(linkwarden): use pgbouncer where possible

linkwarden/resources/db/user.yaml

@@ -9,4 +9,5 @@ spec:
   secretName: db-credentials
   privileges: OWNER
   secretTemplate:
-    PQ_URL: "postgresql://{{.Role}}:{{.Password}}@app-cluster-pooler-rw.postgres.svc:5432/{{.Database}}?sslmode=require"
+    PQ_URL: "postgresql://{{.Role}}:{{.Password}}@app-cluster-pooler-rw.postgres.svc:5432/{{.Database}}?sslmode=require&pgbouncer=true"
+    PQ_MIGRATE_URL: "postgresql://{{.Role}}:{{.Password}}@{{.Host}}:5432/{{.Database}}?sslmode=require"

linkwarden/resources/deployment.yaml

@@ -31,7 +31,7 @@ spec:
               valueFrom:
                 secretKeyRef:
                   name: db-credentials-linkwarden
-                  key: PQ_URL
+                  key: PQ_MIGRATE_URL
       containers:
         - name: linkwarden
           image: linkwarden