meta: add parentheses around max to prevent conflicts with max macro on Windows (#1278)

src/entt/meta/fwd.hpp

@@ -28,7 +28,7 @@ template<typename>
 class meta_factory;
 
 /*! @brief Used to identicate that a sequence container has not a fixed size. */
-inline constexpr std::size_t meta_dynamic_extent = std::numeric_limits<std::size_t>::max();
+inline constexpr std::size_t meta_dynamic_extent = (std::numeric_limits<std::size_t>::max)();
 
 } // namespace entt