[libc++] [test] Uncomment std::ranges::min_element in niebloid.compile.pass.cpp.

This should have been part of 3b470d1.

Author: Quuxplusone

libcxx/test/std/library/description/conventions/customization.point.object/niebloid.compile.pass.cpp

@@ -100,7 +100,7 @@ int a[10];
 //static_assert(test(std::ranges::max_element, a));
 //static_assert(test(std::ranges::merge, a, a, a));
 //static_assert(test(std::ranges::min, a));
-//static_assert(test(std::ranges::min_element, a));
+static_assert(test(std::ranges::min_element, a));
 //static_assert(test(std::ranges::minmax, a));
 //static_assert(test(std::ranges::minmax_element, a));
 //static_assert(test(std::ranges::mismatch, a, a));