ProjectExplorer: Switch order of user and backend notification

... in the code of processRecipe(). This doesn't make a practical
difference as the backend acts asyncronously, but it looks more
logical in code.

Change-Id: Ibdec796f0ceb1f1e0a1e5ebd99f15457d88350e7
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

src/plugins/projectexplorer/runcontrol.cpp

@@ -1740,8 +1740,8 @@ Group processRecipe(RunControl *runControl,
         }
         QObject::connect(runStorage().activeStorage(), &RunInterface::canceled, &process,
                          [runControl, process = &process] {
-            process->stop();
             runControl->postMessage(Tr::tr("Requesting process to stop ...."), NormalMessageFormat);
+            process->stop();
         });
         return SetupResult::Continue;
     };