mute stubs test for linux py3.13 (Netflix#2295)

... while we debug

Author: savingoyal

.github/workflows/test-stubs.yml

@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-20.04]
-        ver: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
+        ver: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
         include:
           - os: macos-latest
             ver: "3.13"