Switch to Determinate Nix (#90)

* Switch to Determinate Nix

* Change runner group in build workflow

* Fix user name

---------

Co-authored-by: Guillaume LEGENDRE <[email protected]>

Author: danieldk

.github/workflows/build.yaml

@@ -7,22 +7,23 @@ concurrency:
 jobs:
   tests:
     runs-on:
-      group: aws-highmemory-32-plus-priv
+      group: aws-highmemory-32-plus-nix
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v27
+      - uses: DeterminateSystems/nix-installer-action@main
         with:
-          nix_path: nixpkgs=channel:nixos-unstable
-          jobs: 4
-          cores: 12
-      - uses: cachix/cachix-action@v14
+          extra-conf: |
+            max-jobs = 4
+            cores = 12
+            sandbox-fallback = false
+      - name: Nix info
+        run: nix-shell -p nix-info --run "nix-info -m"
+      - uses: cachix/cachix-action@v16
         with:
           name: huggingface
         #    authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
         env:
-          USER: github_runner
-      - name: Nix info
-        run: nix-shell -p nix-info --run "nix-info -m"
+          USER: runner
       - name: Check formatting
         run: nix fmt -- --ci
       - name: Build