gitlab-ci: Bump DEBIAN_TAG to build with gcc 9.3.0

4 jobs for gcc-9.3.0 in 8 minutes and 10 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Docker Image
passed #2364586
debian-testing

00:00:17

 
  Build And Test
passed #2364587
autotools

00:07:53

failed #2364588
meson

00:01:42

failed #2364589
meson-noglamor

00:01:42

 
Name Stage Failure
failed
meson-noglamor Build And Test
no input file                        435
cleanups performed 0
files in cache 63088
cache size 3.1 GB
max cache size 5.0 GB
Uploading artifacts...
WARNING: build/test/piglit-results/: no matching files
ERROR: No files to upload
ERROR: Job failed: exit code 1
failed
meson Build And Test
no input file                        435
cleanups performed 0
files in cache 63088
cache size 3.1 GB
max cache size 5.0 GB
Uploading artifacts...
WARNING: build/test/piglit-results/: no matching files
ERROR: No files to upload
ERROR: Job failed: exit code 1