Merge remote-tracking branch 'nl6720/gpg-sender'

* nl6720/gpg-sender:
  .gitlab/ci/build_archiso.sh: use mkarchiso's -G option
  mkarchiso: support setting gpg sender
  mkarchiso: add some sane gpg options to override those set in user's gpg.conf
7 jobs for master in 33 minutes and 24 seconds (queued for 6 seconds)
Status Name Job ID Coverage
  Check
passed check #32378

00:00:15

 
  Build
passed build_long: [baseline iso] #32381
fast-single-thread

00:17:38

passed build_long: [baseline netboot] #32382
fast-single-thread

00:17:37

passed build_long: [releng iso] #32383
fast-single-thread

00:33:06

passed build_long: [releng netboot] #32384
fast-single-thread

00:32:00

passed build_short: [baseline bootstrap] #32379

00:14:07

passed build_short: [releng bootstrap] #32380

00:14:10