Fetching GitLab repo contents correctly uses the ref argument #15897

Job	Run time
Updater	3m 19s
ci (bundler, bundler1, 2, 0, bundler)	5m 18s
ci (bundler, bundler1, 2, 1, bundler)	3m 28s
ci (bundler, bundler2, 2, 0, bundler)	4m 13s
ci (bundler, bundler2, 2, 1, bundler)	3m 47s
ci (cargo, cargo, cargo)	2m 52s
ci (common, common, common)	2m 2s
ci (composer, composer, 2, 0, composer)	5m 10s
ci (composer, composer, 2, 1, composer)	7m 37s
ci (docker, docker, docker)	1m 19s
ci (elm, elm, elm)	1m 29s
ci (git_submodules, git_submodules, gitsubmodule)	1m 26s
ci (github_actions, github_actions, github-actions)	1m 35s
ci (go_modules, go_module, 2, 0, gomod)	2m 53s
ci (go_modules, go_module, 2, 1, gomod)	7m 28s
ci (gradle, gradle, gradle)	1m 25s
ci (hex, hex, 2, 0, mix)	5m 18s
ci (hex, hex, 2, 1, mix)	5m 48s
ci (maven, maven, maven)	1m 21s
ci (npm_and_yarn, npm_and_yarn, 3, 0, npm)	4m 46s
ci (npm_and_yarn, npm_and_yarn, 3, 1, npm)	8m 39s
ci (npm_and_yarn, npm_and_yarn, 3, 2, npm)	5m 28s
ci (nuget, nuget, nuget)	1m 23s
ci (pub, pub, 2, 0, pub)	7m 22s
ci (pub, pub, 2, 1, pub)	8m 36s
ci (python, python, 2, 0, pip)	22m 53s
ci (python, python, 2, 1, pip)	17m 42s
ci (python, python_slow, 2, 0, pip)	17m 38s
ci (python, python_slow, 2, 1, pip)	19m 4s
ci (swift, swift, 2, 0, swift)	4m 54s
ci (swift, swift, 2, 1, swift)	2m 29s
ci (terraform, terraform, terraform)	3m 37s
Lint	1m 9s
	3h 13m 28s

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