fix(deploy-static-site): remove nix profile install, tools provided by runner image

deploy-static-site/action.yaml

@@ -47,24 +47,6 @@ inputs:
 runs:
   using: composite
   steps:
-    - name: Install tools
-      shell: bash
-      run: |
-        NIXPKGS_ALLOW_UNFREE=1 nix profile install --impure nixpkgs#nomad nixpkgs#awscli2 nixpkgs#skopeo
-        echo "$HOME/.nix-profile/bin" >> $GITHUB_PATH
-
-    - name: Cache installed tools
-      if: env.NIX_SIGNING_KEY != ''
-      shell: bash
-      run: |
-        echo "${NIX_SIGNING_KEY}" > /tmp/nix-key
-        nix store sign -k /tmp/nix-key --recursive "$HOME/.nix-profile"
-        rm /tmp/nix-key
-        nix copy --to "file:///tmp/nix-tools-cache" "$HOME/.nix-profile"
-        aws s3 sync /tmp/nix-tools-cache \
-          "s3://${{ inputs.s3-bucket }}" \
-          --endpoint-url "${{ inputs.s3-endpoint }}"
-
     - name: Build site
       shell: bash
       run: nix build ".#${{ inputs.flake-output }}" --out-link result-site