bump wallet-core submodule - libeufin - Integration and sandbox testing for FinTech APIs and data formats

commit 0c37929df57286e4c52fa7f72e7352c56537f77a
parent 2c6d6e527c0e2089f5a794677271444e4ad4e384
Author: Christian Grothoff <grothoff@gnunet.org>
Date:   Sat,  2 Dec 2023 16:19:46 +0900

bump wallet-core submodule

	libeufin Integration and sandbox testing for FinTech APIs and data formats
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