Merge pull request #25 from heroku/dependabot/pip/mcp-clientserver--1.9.4

Bump mcp[client,server] from 1.9.2 to 1.9.4

Author: jttyeung

requirements.txt

@@ -1,4 +1,4 @@
-mcp[client,server]==1.9.2
+mcp[client,server]==1.9.4
 fastapi==0.115.12
 uvicorn==0.34.3
 python-dotenv==1.1.0