TextEditorPlugin: Limit the usage of std::make_pair

And qMakePair.

Change-Id: Id92a662fa0674b9e9f835280bb9378c8d00549e8
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/texteditor/refactoringchanges.cpp

@@ -43,8 +43,7 @@ RefactoringSelections RefactoringChanges::rangesToSelections(QTextDocument *docu
         start.setKeepPositionOnInsert(true);
         QTextCursor end(document);
         end.setPosition(qMin(range.end, document->characterCount() - 1));
-
-        selections.append(qMakePair(start, end));
+        selections.push_back({start, end});
     }
 
     return selections;