ci: add timeout on the test job (modelcontextprotocol#955)

Author: Kludex

.github/workflows/shared.yml

@@ -25,6 +25,7 @@ jobs:
 
   test:
     runs-on: ${{ matrix.os }}
+    timeout-minutes: 10
     strategy:
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13"]