Test operator code generation is up to date

Signed-off-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>

.github/workflows/test-operator-codegen.yml

@@ -0,0 +1,43 @@
+# This workflow check
+name: Operator code generation check
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+      - "release/**"
+    paths:
+      - "operators/**"
+  pull_request:
+    paths:
+      - "operators/**"
+
+jobs:
+  govulncheck:
+    name: check-codegen
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # tag=v3.1.0
+        with:
+          ref: ${{ github.head_ref }}
+
+      - name: Setup Go environment
+        uses: actions/setup-go@c4a742cab115ed795e34d4513e2cf7d472deb55f # tag=v3.3.1
+        with:
+          go-version: "1.19.2"
+          cache: true
+
+      - name: Run code generation
+        shell: bash
+        working-directory: "operators/"
+        run: |
+          dirs=$(find . \! -name . -prune -type d)
+          for dir in $dirs; do
+            (cd $dir; make manifests generate)
+          done
+
+      - name: Check diff and fail on changes
+        shell: bash
+        run: git diff --exit-code