[Enhancement]: Reduce the calls to get_post_meta in data stores #60706
Description
Similar to #37326, we should follow the same approach in:
\Abstract_WC_Order_Data_Store_CPT::read_order_data
\WC_Order_Data_Store_CPT::read_order_data
\WC_Order_Refund_Data_Store_CPT::read_order_data
Not worth the effort:
\WC_Product_Data_Store_CPT::get_data_for_lookup_table\WC_Coupon_Data_Store_CPT::read