Valgrind: Remove foreach / Q_FOREACH usage

Task-number: QTCREATORBUG-27464
Change-Id: Ia507fb7aab405226a954b6059ef326e999a8171a
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/plugins/valgrind/memcheckerrorview.cpp

@@ -100,7 +100,7 @@ QList<QAction *> MemcheckErrorView::customActions() const
     QTC_ASSERT(!indizes.isEmpty(), return actions);
 
     bool hasErrors = false;
-    foreach (const QModelIndex &index, indizes) {
+    for (const QModelIndex &index : indizes) {
         Error error = model()->data(index, ErrorListModel::ErrorRole).value<Error>();
         if (!error.suppression().isNull()) {
             hasErrors = true;