Change runner to use checkout to clone

.forgejo/workflows/build.yml

@@ -12,10 +12,8 @@ jobs:
       COMMIT: ${{ github.sha }}
 
     steps:
-      - name: Clone repository
-        run: |
-          git clone --branch "$BRANCH" https://mentalnet.xyz/forgejo/markmental/newfah.git .
-          echo "✅ Checked out $BRANCH ($COMMIT)"
+      - name: Checkout repository
+        uses: actions/checkout@v3
 
       - name: Install packaging tools
         run: |