What is the ruling on the bribery paid by truck drivers to border guards in exchange for allowing goods to pass, and are the owners of the goods, who only pay the truck rental, considered partners in this bribery due to their knowledge of it?

What is paid to get rid of injustice or to obtain a right is not considered a bribe. A bribe is what is paid to invalidate a right or uphold falsehood. What truck drivers pay to get rid of the injustice of border guards is not a bribe, and likewise, what you pay to rent trucks is not a bribe.