gh-132950: Skip test_remote_pdb if remote exec is disabled

Skip test_keyboard_interrupt() if remote execution is disabled.

Author: vstinner

Lib/test/test_remote_pdb.py

@@ -463,6 +463,8 @@ def test_breakpoints(self):
             self.assertIn("Function returned: 42", stdout)
             self.assertEqual(process.returncode, 0)
 
+    @unittest.skipUnless(sys.is_remote_debug_enabled(),
+                         'remote debugging is disabled')
     def test_keyboard_interrupt(self):
         """Test that sending keyboard interrupt breaks into pdb."""
         synchronizer_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)