CLight: Collapse std::max calls into one

We can use the overload that takes an initializer list to make it easier
to read.

Runtime/Graphics/CLight.cpp

@@ -32,7 +32,7 @@ float CLight::GetIntensity() const {
     if (x1c_type == ELightType::Custom) {
       coef = x30_angleC;
     }
-    x48_cachedIntensity = coef * std::max(x18_color.r(), std::max(x18_color.g(), x18_color.b()));
+    x48_cachedIntensity = coef * std::max({x18_color.r(), x18_color.g(), x18_color.b()});
   }
   return x48_cachedIntensity;
 }