disable tests with python 3.9.

Author: lukeina2z

tox.ini

@@ -27,7 +27,8 @@ envlist =
 
     ; instrumentation-mcp
     py3{10,11,12,13}-test-instrumentation-mcp-{oldest,latest}
-    pypy3-test-instrumentation-mcp-{oldest,latest}
+    ; MCP Python SDK requires Python >=3.10
+    ; pypy3-test-instrumentation-mcp-{oldest,latest}
     lint-instrumentation-mcp
 
     ; opentelemetry-resource-detector-containerid