add DeterministSystem cache

.gitea/workflows/analysis.yml

@@ -8,5 +8,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v5
+      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
       - name: Check Nix flake inputs
         uses: http://github.com/DeterminateSystems/flake-checker-action@main

.gitea/workflows/deploy.yml

@@ -12,16 +12,13 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v5
+      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
       - name: Install SSH key
         uses: shimataro/ssh-key-action@v2
         with:
           key: ${{ secrets.SSH_KEY }}
           known_hosts: ${{ secrets.KNOWN_HOSTS }}
-      - name: Install dependencies for Nix setup action
-        run: |
-          apt update -y
-          apt install sudo -y  
-      - uses: cachix/install-nix-action@v31
         with:
           install_url: https://releases.nixos.org/nix/nix-2.28.5/install
       - uses: http://github.com/cachix/cachix-action@v16