workflows: use native nix runner

Signed-off-by: Ophestra <cat@gensokyo.uk>

.gitea/workflows/release.yml

@@ -8,9 +8,7 @@ on:
 jobs:
   release:
     name: Create release
-    runs-on: ubuntu-latest
-    permissions:
-      actions: write
+    runs-on: nix
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -20,27 +18,6 @@ jobs:
         with:
           go-version: '>=1.23.0'
 
-      - name: Install Nix
-        uses: cachix/install-nix-action@v30
-        with:
-          # explicitly enable sandbox
-          install_options: --daemon
-          extra_nix_config: |
-            sandbox = true
-            system-features = nixos-test benchmark big-parallel kvm
-          enable_kvm: true
-
-      - name: Ensure environment
-        run: >-
-          apt-get update && apt-get install -y sqlite3
-        if: ${{ runner.os == 'Linux' }}
-
-      - name: Restore Nix store
-        uses: nix-community/cache-nix-action@v5
-        with:
-          primary-key: build-dist-${{ runner.os }}-${{ hashFiles('**/*.nix') }}
-          restore-prefixes-first-match: build-dist-${{ runner.os }}-
-
       - name: Build for release
         run: nix build --print-out-paths --print-build-logs .#dist