Log Message:
gnupg2: updated to 2.2.20

Noteworthy changes in version 2.2.20:
* Protect the error counter against overflow to guarantee that the
  tools can't be tricked into returning success after an error.
* gpg: Make really sure that --verify-files always returns an error.
* gpg: Fix key listing --with-secret if a pattern is given.
* gpg: Fix detection of certain keys used as default-key.
* gpg: Fix default-key selection when a card is available.
* gpg: Fix key expiration and key usage for keys created with a
  creation date of zero.
* gpgsm: Fix import of some CR,LF terminated certificates.
* gpg: New options --include-key-block and --auto-key-import to
  allow encrypted replies after an initial signed message.
* gpg: Allow the use of a fingerprint with --trusted-key.
* gpg: New property "fpr" for use by --export-filter.
* scdaemon: Disable the pinpad if a KDF DO is used.
* dirmngr: Improve finding OCSP certificates.
* Avoid build problems with LTO or gcc-10.