Update install-nix acton to latest release (#26)

https://github.com/cachix/install-nix-action/releases/tag/v31.3.0

Author: awnumar

.github/workflows/check.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - uses: cachix/install-nix-action@6ed004b9ccb68dbc28e7c85bee15fa93dbd214ac
+    - uses: cachix/install-nix-action@526118121621777ccd86f79b04685a9319637641
       with:
         nix_path: nixpkgs=channel:nixos-23.11
         github_access_token: ${{ secrets.GITHUB_TOKEN }}