Update sync-repo.yml

.github/workflows/sync-repo.yml

@@ -9,16 +9,27 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+    - uses: actions/checkout@v4
+      with:
+        ref: mm-unstable
+
+    - name: add-remote
+      run: |
+        git remote add kernel git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
+        git remote -v
+      
+    - name: pull-push-mm-unstable
+      run: |
+        git pull -f kernel mm-unstable
+        git push -f origin mm-unstable
+
     - uses: actions/checkout@v4
       with:
         ref: mm-stable
-    - name: add-kernel-remote
-      run: git remote add kernel git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
-    - name: show-remote
-      run: git remote -v
-    - name: pull-kernel-mm-unstable
-      run: git pull kernel mm-unstable:mm-unstable-local
-    - name: push-mm-unstable
-      run: git push -f origin mm-unstable-local:mm-unstable
+
+    - name: pull-push-mm-stable
+      run: |
+        git pull -f kernel mm-stable
+        git push -f origin mm-stable