call command with updated/renamed name

Command `hpd-ensure-all-gitlab-refs` has been renamed to
`hpd-ensure-all-gitlab-specific-state-files` and the new version
of if also ensure the presence of gitlab default branch file.

--HG--
branch : heptapod
12 jobs for !286 with topic/heptapod/ensure-gitlab-state-files in 15 minutes and 45 seconds (queued for 5 seconds)
latest detached
Status Name Job ID Coverage
  Lint
passed rubocop #247429

00:03:37

 
  Test
passed rspec-regular 1/8 #247433

00:08:43

passed rspec-regular 2/8 #247434

00:07:42

passed rspec-regular 3/8 #247435

00:06:22

passed rspec-regular 4/8 #247436

00:08:05

passed rspec-regular 5/8 #247437

00:08:00

passed rspec-regular 6/8 #247438

00:12:06

passed rspec-regular 7/8 #247439

00:08:57

passed rspec-regular 8/8 #247440

00:08:21

passed workhorse:test using go 1.15 #247431

00:01:48

passed workhorse:test using go 1.16 #247432

00:01:57

passed workhorse:verify #247430

00:01:32