Update kustomization.yaml

The latest version of kustomize may be causing this error;

`error: invalid kustomization: json: cannot unmarshal string into go struct field kustomization.patches of type types.patch`

kustom-webapp/overlays/dev/kustomization.yaml

@@ -2,8 +2,8 @@ bases:
 - ../../base
 
 patches:
- - replicas.yaml
+- path: replicas.yaml
 
 configMapGenerator:
 - name: mykustom-map
-  env: config.properties
+  env: config.properties