fixup! Update ci workflow to work with forgejo

.github/workflows/ci.yml

@@ -13,11 +13,13 @@ concurrency:
 jobs:
   build:
     runs-on: ubuntu-22.04
+    container: nixpkgs/nix-flakes:nixos-24.05
     steps:
       - uses: actions/checkout@v4
         with:
           persist-credentials: 'true' # Optional; should be the default
       - name: Checkout lfs
+        shell: "nix shell nixpkgs#git-lfs --command {0}"
         run: |
           git lfs install --local
           AUTH=$(git config --local http.${{ github.server_url }}/.extraheader)
@@ -25,7 +27,6 @@ jobs:
           git config --local http.${{ github.server_url }}/${{ github.repository }}.git/info/lfs/objects/batch.extraheader "$AUTH"
           git lfs pull
       - name: Run Nix Build
-        uses: docker://hub.docker.com/nixpkgs/nix-flakes:nixos-24.05
         run: nix build .
 #      - uses: actions/upload-pages-artifact@v3
 #        with: