Add GitLab CI config

2 jobs for main in 1 minute and 12 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Test
failed assets #1272

00:01:12

failed rubocop #1271

00:01:11

 
Name Stage Failure
failed
assets Test
Skipping Git submodules setup
Checking cache for default...
No URL provided, cache will not be downloaded from shared cache server. Instead a local version of cache will be extracted.
Successfully extracted cache
$ ruby -v
ruby 2.3.8p459 (2018-10-18 revision 65136) [x86_64-linux]
$ bundle install -j $(nproc) --path vendor
You must use Bundler 2 or greater with this lockfile.
ERROR: Job failed: exit code 1
failed
rubocop Test
Skipping Git submodules setup
Checking cache for default...
No URL provided, cache will not be downloaded from shared cache server. Instead a local version of cache will be extracted.
Successfully extracted cache
$ ruby -v
ruby 2.3.8p459 (2018-10-18 revision 65136) [x86_64-linux]
$ bundle install -j $(nproc) --path vendor
You must use Bundler 2 or greater with this lockfile.
ERROR: Job failed: exit code 1