DOC: Update gana and sphinx - gnunet

commit d882a70d1a928708d0bb5ee110c4e30937509352
parent 770981f81e3b83661348547a224643c81ef99f71
Author: Martin Schanzenbach <schanzen@gnunet.org>
Date:   Fri,  8 Sep 2023 21:06:00 +0200

DOC: Update gana and sphinx

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