Recognize opam-repo-ci #371

Job	Run time
build (ubuntu-latest, ., true, 4.14.x)	12m 6s
build (ubuntu-latest, ., true, 5.0.x)	10m 11s
build (macos-latest, 4.14.x, ., true)	18m 11s
build (windows-latest, 4.14.x, alcotest alcotest-js alcotest-lwt alcotest-mirage, false, alcotest...	10m 6s
build (ubuntu-latest, 4.08.x, alcotest alcotest-js alcotest-lwt alcotest-mirage, false, alcotest....	9m 32s
build (ubuntu-latest, 4.09.x, alcotest alcotest-js alcotest-lwt alcotest-mirage, false, alcotest....	9m 27s
build (ubuntu-latest, 4.10.x, alcotest alcotest-js alcotest-lwt alcotest-mirage, false, alcotest....	11m 19s
build (ubuntu-latest, 4.11.x, alcotest alcotest-js alcotest-lwt alcotest-mirage, false, alcotest....	9m 39s
build (ubuntu-latest, 4.12.x, alcotest alcotest-js alcotest-lwt alcotest-mirage, false, alcotest....	9m 26s
build (ubuntu-latest, 4.13.x, alcotest alcotest-js alcotest-lwt alcotest-mirage, false, alcotest....	6m 11s
	1h 46m 8s

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