Update to the latest fabric (v2.5.9), fabric-ca, and fabric-lib-go.
These versions all depend on the same version of github.com/IBM/idemix and
resolves issues related to breaking changes in github.com/IBM/idemix.
Note that the fabric dependency is now on the release-2.5 branch rather than main branch,
which is why one of the function calls needed to be updated.
Update to the latest fabric (v2.5.9), fabric-ca, and fabric-lib-go. These versions all depend on the same version of github.com/IBM/idemix and resolves issues related to breaking changes in github.com/IBM/idemix.
Note that the fabric dependency is now on the release-2.5 branch rather than main branch, which is why one of the function calls needed to be updated.