Add workflows for automatic PRs on release-fix and release-integration branches

Author: p3dr0rv

.github/workflows/integration/release-fix.yml

@@ -0,0 +1,49 @@
+##
+# Workflow: release-fix auto PR
+# Purpose: When a `release-fix/*` branch is created, automatically
+#          open a pull request targeting the corresponding `release/<version>` branch.
+# Maintainer: Android Team - Release Engineering
+# Docs: See repository CONTRIBUTING.md for release process guidance
+##
+name: Auto PR to merge release-fix branches into release
+
+permissions:
+  contents: read
+  pull-requests: write
+
+on:
+  create:
+
+jobs:
+  create-pr:
+    if: >
+      github.event.ref_type == 'branch' &&
+      startsWith(github.event.ref, 'release-fix/')
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Compute target release version
+        id: compute_version
+        run: |
+          BRANCH_NAME="${{ github.event.ref }}"
+          if [[ "$BRANCH_NAME" =~ ^release-fix/(.+)$ ]]; then
+            VERSION="${BASH_REMATCH[1]}"
+            echo "version=$VERSION" >> $GITHUB_OUTPUT
+            echo "Computed version: $VERSION"
+          else
+            echo "Failed to compute version from branch: $BRANCH_NAME"
+            exit 1
+          fi
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v8
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          base: ${{ format('release/{0}', steps.compute_version.outputs.version) }}
+          branch: ${{ github.event.ref }}
+          title: ${{ format('Auto PR: {0} → release/{1}', github.event.ref, steps.compute_version.outputs.version) }}
+          body: |
+            This is an automated pull request created to integrate release changes into **release/${{ steps.compute_version.outputs.version }}**.
+            Triggered when the branch **${{ github.event.ref }}** was published.

.github/workflows/integration/release-integration.yml

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+##
+# Workflow: release-integration auto PR
+# Purpose: When a `release-integration/*` branch is created, automatically
+#          open a pull request targeting `dev` to integrate release changes.
+##
+name: Auto PR to dev for release-integration branches
+
+permissions:
+  contents: read
+  pull-requests: write
+
+on:
+  create:
+
+jobs:
+  create-pr:
+    if: >
+      github.event.ref_type == 'branch' &&
+      startsWith(github.event.ref, 'release-integration/')
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v8
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          base: dev
+          branch: ${{ github.event.ref }}
+          title: "Auto PR: ${{ github.event.ref }} → dev"
+          body: |
+            This is an automated pull request created to integrate release changes into **dev**.
+            Triggered when the branch **${{ github.event.ref }}** was published.