Log Message:
gpgme: updated to 1.13.1

Noteworthy changes in version 1.13.1:
* cpp: gpgme_set_global_flag is now wrapped.
* w32: Improved handling of unicode install paths.
* w32: The gpgme_io_spawn error message is now only shown once.
* Fixed a crash introduced in 1.13.0 when working with S/MIME.
* w32: Fixed format string errors introduced in 1.13.0 that could
  cause crashes.
* w32: Fixed an error in the new diagnostic gpgsm support introduced
  in 1.13.0 that caused crashes in low fd scenarios.
* python: Fixed a DecryptionError Exception.
* python: No longer raises BadSignatures from decrypt(verify=True).