[meta.reflection.access.context] Fix mistaken qualifier

A misapplication of P2079R10.

Author: tkoeppe

source/meta.tex

@@ -5222,7 +5222,7 @@
 \end{itemdescr}
 
 \begin{itemdecl}
-static consteval access_context @\libmember{via}{access_context}@(info cls) noexcept;
+static consteval access_context @\libmember{via}{access_context}@(info cls) const;
 \end{itemdecl}
 
 \begin{itemdescr}