This aParentName can be const

Change-Id: If3d94b7b8e9b10934b1be0771c4c85536bc750f0
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/124642
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

sc/source/filter/orcus/interface.cxx

@@ -2160,7 +2160,7 @@ void ScOrcusStyles::set_cell_style_builtin(size_t index)
 
 void ScOrcusStyles::set_cell_style_parent_name(const char* s, size_t n)
 {
-    OUString aParentName(s, n, mrFactory.getGlobalSettings().getTextEncoding());
+    const OUString aParentName(s, n, mrFactory.getGlobalSettings().getTextEncoding());
     maCurrentCellStyle.maParentName = aParentName;
 }