Added filesize check CI

.github/workflows/filesize.yml

@@ -0,0 +1,16 @@
+name: Check file size
+on:
+  pull_request:
+    branches: [ main ]
+
+  # to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  check-filesize:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check large files
+        uses: ActionsDesk/lfs-warning@v2.0
+        with:
+          filesizelimit: 10485760 # this is 10MB so we can sync to HF Spaces