bump to the ZKAPAuthorizer branch that pulls in and is compat w/ the new Tahoe-LAFS

nixos/pkgs/privatestorage/repo.json

@@ -2,7 +2,7 @@
   "owner": "PrivateStorageio",
   "branch": "main",
   "repo": "ZKAPAuthorizer",
-  "rev": "b61f3d4a3f5eb72cb600dd83796a1aaca2931e07",
+  "rev": "94cd16ce2d3ffb0aa18e7dfd58765eebda372117",
   "outputHashAlgo": "sha512",
-  "outputHash": "2d7a9m34jx1k38fmiwskgwd1ryyhrb56m9nam12fd66shl8qzmlfcr1lwf063qi1wqdzb2g7998vxbv3c2bmvw7g6iqwzjmsck2czpn"
+  "outputHash": "1vgq438nhhzlylha2yysl7mf1ddafghv9yap6y8fi4b8djdpy58k5xx9hj7ws08hb0yhrly2axv003pxm5gy1zyaghfnwwp4491cqfg"
 }
\ No newline at end of file