Merge pull request #1316 from peterbecich/check-develop-shell

check `nix develop` shell is working in GitHub Action

Author: peterbecich

.github/workflows/nix-flake.yml

@@ -32,6 +32,9 @@ jobs:
     - name: "Check `nix develop` shell"
       run: nix develop --check
 
+    - name: "Check `nix develop` shell can run command"
+      run: nix develop --command "echo"
+
     - run: nix build
 
     - continue-on-error: false