Skip test_listen_server_error if sockets are not supported

Like the other logging.config.listen() tests.  It failed on WASI and
Emscripten, which cannot start a thread.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: serhiy-storchaka

Lib/test/test_logging.py

@@ -3765,6 +3765,7 @@ def verify_reverse(stuff):
             ('ERROR', '2'),
         ], pat=r"^[\w.]+ -> (\w+): (\d+)$")
 
+    @support.requires_working_socket()
     def test_listen_server_error(self):
         # The "ready" event should be set even if the server fails to start.
         t = logging.config.listen(-1)