remove flakecheck

.gitea/workflows/build-and-publish.yaml

@@ -16,19 +16,11 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - uses: DeterminateSystems/flake-checker-action@main
-        with:
-          flake-lock-path: ./flake.lock
-
       - name: Build Docker Image via Nix Flake
         run: |
           nix build .#dockerImage -print-build-logs
           docker load < result
 
-      - name: Push closure to Attic cache
-        run: |
-          attic push ${{ secrets.ATTIC_CACHE }} ./result
-
       - name: Log in to Gitea Container Registry
         uses: docker/login-action@v3
         with: