Merge pull request stack-of-tasks#565 from stack-of-tasks/dependabot/github_actions/devel/cachix/install-nix-action-31

build(deps): bump cachix/install-nix-action from 27 to 31

Author: nim65s

.github/workflows/nix.yml

@@ -18,7 +18,7 @@ jobs:
         os: [ubuntu, macos]
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v31
       - uses: cachix/cachix-action@v16
         with:
           name: gepetto