fix admin projection write permissions

k8s/deployment.yaml

@@ -121,7 +121,11 @@ spec:
           volumeMounts:
             - name: database
               mountPath: /app/var
+            - name: generated
+              mountPath: /app/generated
       volumes:
         - name: database
           persistentVolumeClaim:
             claimName: recipe-book-database
+        - name: generated
+          emptyDir: {}