Method destroy

include/rabitqlib/utils/array.hpp:57–61

    [[nodiscard]] constexpr auto bytes() const -> size_t { return sizeof(T) * size(); }

    void destroy() {
        size_t num_elements = size();
        atraits::deallocate(allocator_, pointer_, num_elements);
        pointer_ = nullptr;
    }

   public:
    using allocator_type = Alloc;