(Reuters) -German lender Commerzbank and Global Payments on Thursday said they were setting up a joint venture controlled by the U.S. payments firm to serve small retailers in the euro zone’s biggest economy. Atlanta-based Global Payments already partners with Spain’s CaixaBank and Austria’s Erste Group Bank in Europe. Global Payments will own 51% of the Commerz Globalpay GmbH joint venture (JV), which will launch by mid-2024. Commerzbank will own the remaining 49%. The two companies said in a statement Global Payments would provide payments solutions and Commerzbank customer relationships. Co…