ci: add debian job

Add a meson job for debian sid.
4 jobs for meson-3.2.9999.3 in 1 minute and 6 seconds (queued for 9 seconds)
latest
Status Name Job ID Coverage
  Build
passed debian sid #14774297

00:01:06

failed msys2 #14774296
docker windows 1809 allowed to fail

00:01:04

passed vs2017 amd64 #14774294
docker windows 1809

00:00:54

passed vs2017 x86 #14774295
docker windows 1809

00:00:53

 
Name Stage Failure
failed
msys2 Build
error: mingw64: key "5F944B027F7FE2091985AA2EFA11531AA0AA7F57" is unknown
error: key "5F944B027F7FE2091985AA2EFA11531AA0AA7F57" could not be looked up remotely
error: msys: key "5F944B027F7FE2091985AA2EFA11531AA0AA7F57" is unknown
error: key "5F944B027F7FE2091985AA2EFA11531AA0AA7F57" could not be looked up remotely
error: database 'mingw32' is not valid (invalid or corrupted database (PGP signature))
error: database 'mingw64' is not valid (invalid or corrupted database (PGP signature))
error: database 'msys' is not valid (invalid or corrupted database (PGP signature))
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1