fix git lfs in workflow

Author: djformby

.github/workflows/docker-image.yml

@@ -18,6 +18,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          lfs: true
 
       - uses: docker/setup-buildx-action@v3
 
@@ -51,6 +53,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          lfs: true
       - uses: docker/setup-qemu-action@v3   # enables ARM emulation
       - uses: docker/setup-buildx-action@v3
       - uses: docker/login-action@v3