Merge branch 'ab-ci-builds-performance' into 'master'

Limit CI builds queries to 7 days

See merge request gitlab-org/gitlab-exporter!101
2 jobs for bjk/null_values in 1 minute and 7 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #5639003
rspec

00:01:03

passed #5639004
rubocop

00:01:06