gnupg2: updated to 2.2.13

Noteworthy changes in version 2.2.13:
* gpg: Implement key lookup via keygrip (using the & prefix).
* gpg: Allow generating Ed25519 key from existing key.
* gpg: Emit an ERROR status line if no key was found with -k.
* gpg: Stop early when trying to create a primary Elgamal key.
* gpgsm: Print the card's key algorithms along with their keygrips
  in interactive key generation.
* agent: Clear bogus pinentry cache in the error case.
* scd: Support "acknowledge button" feature.
* scd: Fix for USB INTERRUPT transfer.
* wks: Do no use compression for the the encrypted challenge and
  response

(adam)