Use update-deps action

.github/workflows/tmp-update-deps.yaml

@@ -0,0 +1,47 @@
+# Copyright 2020 The Knative Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is automagically synced here from github.com/knative-extensions/.github
+# repo by knobots: https://github.com/knative-extensions/knobots and will be overwritten.
+
+name: Verify
+
+on:
+  pull_request:
+    branches: [ 'main' ]
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  update-deps:
+    name: Test update-deps.sh
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      #- name: Run
+      #  run: ./hack/update-deps.sh --upgrade
+
+      - name: Apply work
+        id: work
+        uses: "knative-extensions/knobots/config/actions/update-deps@main"
+        with:
+          repo: "eventing-istio"
+          organization: "knative-extensions"
+          pr-empty-deps: "false"
+          branch: "main"