tuya_light: fix float->int conversion while setting color temperature (…

…#5067)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Co-authored-by: kswt <kswt@xmpp.is>

esphome/components/tuya/light/tuya_light.cpp

@@ -168,7 +168,7 @@ void TuyaLight::write_state(light::LightState *state) {
 
   if (brightness > 0.0f || !color_interlock_) {
     if (this->color_temperature_id_.has_value()) {
-      uint32_t color_temp_int = static_cast<uint32_t>(color_temperature * this->color_temperature_max_value_);
+      uint32_t color_temp_int = static_cast<uint32_t>(roundf(color_temperature * this->color_temperature_max_value_));
       if (this->color_temperature_invert_) {
         color_temp_int = this->color_temperature_max_value_ - color_temp_int;
       }