Merge branch 'fix-runners-timeout-command' into 'master'

Fixes the command that changes Shared Runners timeout.

See merge request gitlab-com/migration!184
2 jobs for master in 21 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #2718262
references

00:00:18

passed #2718261
shellcheck

00:00:21