QtcProcess: Get rid of setProcessUserEventWhileRunning()

Introduce EventLoopMode enum and pass it to the
QtcProcess::runBlocking() instead. There is no need to
store this setting. By default this value is NoEventLoop.

Change-Id: Icad98b77bec5280b79039b7e5aa4ec408261521c
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/android/androiddeployqtstep.cpp

@@ -527,8 +527,7 @@ void AndroidDeployQtStep::runCommand(const CommandLine &command)
                    OutputFormat::NormalMessage);
 
     buildProc.setCommand(command);
-    buildProc.setProcessUserEventWhileRunning();
-    buildProc.runBlocking();
+    buildProc.runBlocking(QtcProcess::WithEventLoop);
     if (buildProc.result() != QtcProcess::FinishedWithSuccess)
         reportWarningOrError(buildProc.exitMessage(), Task::Error);
 }