Include thirdparty libraries with angle brackets (#5578)

wpimath/src/test/native/cpp/ComputerVisionUtilTest.cpp

@@ -2,8 +2,9 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
+#include <gtest/gtest.h>
+
 #include "frc/ComputerVisionUtil.h"
-#include "gtest/gtest.h"
 
 TEST(ComputerVisionUtilTest, ObjectToRobotPose) {
   frc::Pose3d robot{1_m, 2_m, 0_m, frc::Rotation3d{0_deg, 0_deg, 30_deg}};