Merge pull request #39 from heroku/dependabot/pip/mcp-clientserver--1.13.1

Bump mcp[client,server] from 1.13.0 to 1.13.1

Author: jttyeung

requirements.txt

@@ -1,4 +1,4 @@
-mcp[client,server]==1.13.0
+mcp[client,server]==1.13.1
 fastapi==0.116.1
 uvicorn==0.35.0
 python-dotenv==1.1.1