feat(release): automate patch creation and release process (#8202)

.github/workflows/create-patch-pr.yml

@@ -0,0 +1,58 @@
+name: 'Create Patch PR'
+
+on:
+  workflow_dispatch:
+    inputs:
+      commit:
+        description: 'The commit SHA to cherry-pick for the patch.'
+        required: true
+        type: 'string'
+      channel:
+        description: 'The release channel to patch.'
+        required: true
+        type: 'choice'
+        options:
+          - 'stable'
+          - 'preview'
+      dry_run:
+        description: 'Whether to run in dry-run mode.'
+        required: false
+        type: 'boolean'
+        default: false
+
+jobs:
+  create-patch:
+    runs-on: 'ubuntu-latest'
+    permissions:
+      contents: 'write'
+      pull-requests: 'write'
+    steps:
+      - name: 'Checkout'
+        uses: 'actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8' # ratchet:actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: 'Setup Node.js'
+        uses: 'actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020' # ratchet:actions/setup-node@v4
+        with:
+          node-version-file: '.nvmrc'
+          cache: 'npm'
+
+      - name: 'Install Dependencies'
+        run: 'npm ci'
+
+      - name: 'Configure Git User'
+        run: |-
+          git config user.name "gemini-cli-robot"
+          git config user.email "gemini-cli-robot@google.com"
+
+      - name: 'Create Patch for Stable'
+        if: "github.event.inputs.channel == 'stable'"
+        env:
+          GH_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
+        run: 'node scripts/create-patch-pr.js --commit=${{ github.event.inputs.commit }} --channel=stable --dry-run=${{ github.event.inputs.dry_run }}'
+
+      - name: 'Create Patch for Preview'
+        env:
+          GH_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
+        run: 'node scripts/create-patch-pr.js --commit=${{ github.event.inputs.commit }} --channel=${{ github.event.inputs.channel }} --dry-run=${{ github.event.inputs.dry_run }}'