ci: fix detached head push syntax in action

Author: suprit-4618

.github/workflows/huggingface-sync.yml

@@ -18,4 +18,4 @@ jobs:
       - name: Push to Hugging Face
         env:
           HF_TOKEN: ${{ secrets.HF_TOKEN }}
-        run: git push https://suprit4618:$HF_TOKEN@huggingface.co/spaces/suprit4618/semantic-rag-engine main -f
+        run: git push https://suprit4618:$HF_TOKEN@huggingface.co/spaces/suprit4618/semantic-rag-engine HEAD:main -f