Merge pull request #4639 from opensafely-core/Jongmassey/CoreDevelope… #16

Job	Run time
test-and-build-docker-image / test	3m 8s
test-and-build-docker-image / docker-test	3m 37s
test-and-build-docker-image / lint-dockerfile	8s
test-and-build-docker-image / check	43s
deploy	2m 14s
	9m 50s

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