[build] Upgrade CMake build to googletest 1.11.0 (#3548)

This upgrade uncovered two issues:

ntcore wasn't forcing C++17, which caused a linker error with googletest
Matcher symbols:
```
undefined reference to `testing::Matcher<std::basic_string_view<char, std::char_traits<char> > >::Matcher(std::basic_string_view<char, std::char_traits<char> >)'
```

test_span.cpp wasn't including <algorithm> to use std::sort() and
std::is_sorted().

wpiutil/src/test/native/cpp/span/test_span.cpp

@@ -1,6 +1,7 @@
 
 #include "wpi/span.h"
 
+#include <algorithm>
 #include <cassert>
 #include <deque>
 #include <initializer_list>