[wpiutil] Upgrade to fmt 10.2.1, add wpi::print (#6161)

We now use a wrapper (wpi::print) to catch exceptions since we can't patch
std::print() to not throw when we ultimately migrate to it.

fmtlib and std format/print throw the same exceptions and always have. We previously patched fmt::print() to not throw a write failure exception, but we can't do that for std::print(); wpi::print() is the migration plan.

cscore/examples/usbviewer/usbviewer.cpp

@@ -6,13 +6,12 @@
 #include <thread>
 #include <vector>
 
-#include <fmt/format.h>
-
 #define IMGUI_DEFINE_MATH_OPERATORS
 #include <imgui.h>
 #include <imgui_internal.h>
 #include <opencv2/core/core.hpp>
 #include <opencv2/imgproc.hpp>
+#include <wpi/print.h>
 #include <wpi/spinlock.h>
 #include <wpigui.h>
 
@@ -39,7 +38,7 @@ int main() {
       // get frame from camera
       uint64_t time = cvsink.GrabFrame(frame);
       if (time == 0) {
-        fmt::print("error: {}\n", cvsink.GetError());
+        wpi::print("error: {}\n", cvsink.GetError());
         continue;
       }