LFS cache

Author: mpickering

.github/workflows/build.yaml

@@ -28,7 +28,7 @@ jobs:
       run: git lfs ls-files -l | cut -d' ' -f1 | sort > .lfs-assets-id
 
     - name: Restore LFS cache
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       id: lfs-cache
       with:
         path: .git/lfs