ci: Run CI with UndefinedBehaviourSanitizer and AddressSanitizer

Signed-off-by: Simon McVittie <smcv@collabora.com>
6 jobs for hand-sanitizer in 7 minutes and 59 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Test
passed build:arch #39668
manual

00:04:24

passed build:asan #39664

00:02:57

passed build:bionic #39667

00:07:58

passed build:buster #39666

00:07:44

passed build:stretch #39665

00:07:31

passed build:ubsan #39663

00:03:45