ci: add sudo dependency

.forgejo/workflows/check.yml

@@ -7,6 +7,9 @@ jobs:
   Check:
     runs-on: ubuntu-latest
     steps:
+      - name: Install dependencies
+        run: |
+          apt-get update && apt-get install --yes sudo
       - uses: https://github.com/nixbuild/nix-quick-install-action@v26
         with:
           nix_conf: |