message: integration_tests: fix an old-style C cast
diff: @@ -45,7 +45,7 @@ TEST_F(SitlTest, OffboardVelocityNED)
  {
  const float step_size = 0.01f;
  - const float one_cycle = 2.0f * (float)M_PI;
  + const float one_cycle = 2.0f * M_PI_F;
  const unsigned steps = static_cast<unsigned>(one_cycle / step_size);
  for (unsigned i = 0; i < steps; ++i) {
  