add known hosts and remove unsued actions

.gitea/workflows/analysis.yml

@@ -6,15 +6,5 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v5
-      - name: Install dependencies for Nix setup action
-        run: |
-          apt update -y
-          apt install sudo -y  
-      - uses: http://github.com/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
-        with:
-          name: statix
       - name: Check Nix flake inputs
         uses: http://github.com/DeterminateSystems/flake-checker-action@main

.gitea/workflows/deploy.yml

@@ -14,6 +14,7 @@ jobs:
         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