Log Message:
gpgme: updated to 1.21.0

Noteworthy changes in version 1.21.0 (2023-07-07)
-------------------------------------------------

* Extended gpgme_op_encrypt, gpgme_op_encrypt_sign, and gpgme_op_sign
  to allow writing the output directly to a file.  [T6530]

* Extended gpgme_op_decrypt and gpgme_op_verify to allow reading the
  input data directly from files.  [T6530]

* For key signing and uid revoking allow an empty user id.
  [rMfbc3963d62]

* Pass an input-size-hint also to the gpgsm engine.  [T6534]

* qt: Allow writing the created archives directly to a
  file.  [T6530]

* qt: Allow reading the signed/encrypted archive to decrypt
  or verify directly from a file.  [T6530]

* qt: Qt Jobs working with QIODeviceDataProvider now properly
  handle input-size hints and progress for files larger.
  2^32 bytes in 32 bit builds.  [T6534]

* cpp: Error::isCanceled now also returns true for error code
  GPG_ERR_FULLY_CANCELED.  [T6510]

* python: Fix wrong use of write.  [T6501]