Merge branch 'debian-buster-update' into 'master'

Debian/buster update

Closes #52

See merge request !49
2 jobs for master in 2 minutes and 44 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #475277488
debian_buster

00:01:17

passed #475277481
ruby_latest

00:02:44