Port from qAsConst() to std::as_const()

We've been requiring C++17 since Qt 6.0, and our qAsConst use finally
starts to bother us (QTBUG-99313), so time to port away from it
now.

Since qAsConst has exactly the same semantics as std::as_const (down
to rvalue treatment, constexpr'ness and noexcept'ness), there's really
nothing more to it than a global search-and-replace.

Task-number: QTBUG-99313
Change-Id: I88edd91395849574436299b8badda21bb93bea39
Reviewed-by: hjk <hjk@qt.io>

src/plugins/python/pythonrunconfiguration.cpp

@@ -203,7 +203,7 @@ void PythonRunConfiguration::checkForPySide(const FilePath &python)
     const PipPackage pySide6Package("PySide6");
     const PipPackageInfo info = pySide6Package.info(python);
 
-    for (const FilePath &file : qAsConst(info.files)) {
+    for (const FilePath &file : std::as_const(info.files)) {
         if (file.fileName() == HostOsInfo::withExecutableSuffix("pyside6-project")) {
             pySideProjectPath = info.location.resolvePath(file);
             pySideProjectPath = pySideProjectPath.cleanPath();