Update docker/build-push-action action to v4 (#723)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -127,7 +127,7 @@ jobs:
         uses: docker/metadata-action@v4
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-      - uses: docker/build-push-action@v3
+      - uses: docker/build-push-action@v4
         with:
           context: .
           push: true

ui/src/views/User.vue

@@ -99,6 +99,7 @@ export default Vue.extend({
   watch: {
     '$route': function () {
       this.loadUser();
+      this.newUserResponse = undefined;
     }
   },
   methods: {