fix: Correct mcp-publisher installation in GitHub Actions

- Download tar.gz archive instead of raw binary
- Extract before moving to /usr/local/bin

Author: facundofarias

.github/workflows/publish.yml

@@ -58,7 +58,8 @@ jobs:
 
       - name: Install mcp-publisher
         run: |
-          curl -L https://github.com/modelcontextprotocol/registry/releases/latest/download/mcp-publisher-linux-amd64 -o mcp-publisher
+          curl -L https://github.com/modelcontextprotocol/registry/releases/latest/download/mcp-publisher_linux_amd64.tar.gz -o mcp-publisher.tar.gz
+          tar -xzf mcp-publisher.tar.gz
           chmod +x mcp-publisher
           sudo mv mcp-publisher /usr/local/bin/