[wpiutil] Upgrade to macOS 12 to remove concept shims (#5379)

The macOS deployment target has been upgraded from 10.15 to 11. Also, a
deprecation warning for sprintf() in libuv was suppressed.

wpiutil/src/main/native/include/wpi/priority_queue.h

@@ -6,12 +6,11 @@
 #define WPIUTIL_WPI_PRIORITY_QUEUE_H_
 
 #include <algorithm>
+#include <concepts>
 #include <functional>
 #include <utility>
 #include <vector>
 
-#include "wpi/concepts.h"
-
 namespace wpi {
 
 /**