haydn: Add workflow to push latest changes automatically

.github/workflows/sync.yml

@@ -0,0 +1,32 @@
+name: Sync to Evolution-X-Devices
+
+on:
+  push:
+    branches:
+      - evo
+
+jobs:
+  sync:
+    if: github.repository == 'Haydn-Lab/device_xiaomi_haydn'
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout source repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git identity
+        run: |
+          git config --global user.name "${{ secrets.GIT_USER_NAME }}"
+          git config --global user.email "${{ secrets.GIT_USER_EMAIL }}"
+
+      - name: Force Push to Target Repository
+        run: |
+
+          git config --unset-all http.https://github.com/.extraheader
+
+          git remote add target https://x-access-token:${{ secrets.TARGET_REPO_TOKEN }}@github.com/Evolution-X-Devices/device_xiaomi_haydn.git
+
+          git push target evo:bka --force