Improve logging for failed connection in Python debugger (it might help to investigate PY-16301)

python/src/com/jetbrains/python/debugger/PyDebugProcess.java

@@ -313,10 +313,7 @@ public class PyDebugProcess extends XDebugProcess implements IPyDebugProcess, Pr
           if (myProcessHandler != null) {
             myProcessHandler.destroyProcess();
           }
-          if (!myClosing) {
-            invokeLater(
-              () -> Messages.showErrorDialog("Unable to establish connection with debugger:\n" + e.getMessage(), getConnectionTitle()));
-          }
+          LOG.error(e);
         }
       }
     });