[wpiutil] Upgrade to fmt 9.0.0 (#4337)

fmt removed fmt::make_args_checked since it's no longer needed for
constexpr format string checks.

fmt deprecated implicit conversions from enums to integers in format
arguments, so I added explicit static casts.

wpilibc/src/main/native/cpp/PWM.cpp

@@ -117,7 +117,7 @@ void PWM::SetPeriodMultiplier(PeriodMultiplier mult) {
       break;
     default:
       throw FRC_MakeError(err::InvalidParameter, "PeriodMultiplier value {}",
-                          mult);
+                          static_cast<int>(mult));
   }
 
   FRC_CheckErrorStatus(status, "Channel {}", m_channel);