Autogen/RCC: Disable zstd if it is not supported Add the `--no-zstd` argument for `RCC` when `QT_FEATURE_zstd` is `OFF`. This causes user project builds to fail. That bug is fixed in Qt by https://codereview.qt-project.org/c/qt/qtbase/+/537546 but for the older versions, fix it here too. Fixes: #25664