[range.cmp] Fix indentation (#8203)

Author: Andreas-Krug

source/utilities.tex

@@ -12662,7 +12662,7 @@
 \begin{codeblock}
 struct ranges::greater {
   template<class T, class U>
-  constexpr bool operator()(T&& t, U&& u) const;
+    constexpr bool operator()(T&& t, U&& u) const;
 
   using is_transparent = @\unspecnc@;
 };