fix workflow

.github/workflows/move-to-main-repo.yaml

@@ -181,7 +181,8 @@ jobs:
       - name: Prepare branch name
         run: |
           script_name="${{ steps.list_issues.outputs.script_name }}"
-          branch_name="add-script-${script_name//[^a-zA-Z0-9_-]/}"
+          timestamp=$(date +%s)
+          branch_name="add-script-${script_name//[^a-zA-Z0-9_-]/}-${timestamp}"
           echo "Using branch: $branch_name"
           echo "branch_name=$branch_name" >> $GITHUB_ENV
 
@@ -194,6 +195,12 @@ jobs:
           git clone https://x-access-token:${{ steps.app-token.outputs.token }}@github.com/community-scripts/ProxmoxVE.git ProxmoxVE
           cd ProxmoxVE
 
+          # Check if branch already exists remotely and delete it
+          if git ls-remote --exit-code --heads origin "$branch_name" >/dev/null 2>&1; then
+            echo "Branch $branch_name already exists remotely, deleting it..."
+            git push origin --delete "$branch_name" || true
+          fi
+
           # Check if files already exist in target repo
           case "$script_type" in
             ct)