chore(workflow): auto-create crd update pr in longhorn/longhorn

Longhorn 10193

Signed-off-by: Derek Su <[email protected]>

.github/workflows/create-crd-update-pr-in-longhorn-repo.yml

@@ -0,0 +1,53 @@
+name: Create CRD Update PR in Longhorn Repo
+
+on:
+  pull_request:
+    branches: ["master"]
+    types:
+      - closed
+
+jobs:
+  if_merged:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    steps:
+    - name: Prepare Packages
+      run: |
+        curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
+        chmod 700 get_helm.sh
+        ./get_helm.sh
+
+    - name: Log triggering PR information
+      shell: bash
+      run: |
+        echo "Triggered by PR: #${{ github.event.pull_request.number }}"
+        echo "PR Title: ${{ github.event.pull_request.title }}"
+        echo "PR URL: ${{ github.event.pull_request.html_url }}"
+        echo "PR was merged into branch: ${{ github.event.pull_request.base.ref }}"
+    - uses: actions/checkout@v4
+      with:
+        repository: longhorn/longhorn
+        ref: ${{ github.event.pull_request.base.ref }}
+
+    - name: Update crds.yaml and manifests
+      shell: bash
+      run: |
+        curl -L https://github.com/longhorn/longhorn-manager/raw/master/k8s/crds.yaml -o chart/templates/crds.yaml
+        bash scripts/generate-longhorn-yaml.sh
+
+    - name: Create Pull Request
+      id: cpr
+      uses: peter-evans/create-pull-request@v7
+      with:
+        token: ${{ secrets.CUSTOM_GITHUB_TOKEN }}
+        branch: "update-image-tags-${{ inputs.branch }}"
+        delete-branch: true
+        sign-commits: true
+        signoff: true
+        author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
+        committer: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
+        commit-message: "chore(crd): update crds.yaml and manifests"
+        title: "chore(crd): update crds.yaml and manifests (PR longhorn/longhorn-manager#${{ github.event.pull_request.number}})"
+        body: |
+          This PR updates the crds.yaml and manifests.
+          It was triggered by longhorn/longhorn-manager#${{ github.event.pull_request.number}}.