Update OTP-27, OTP-28 #449

Job	Run time
docker (DIR=master)	19s
docker (DIR=master VARIANT=alpine)	6m 41s
docker (DIR=28)	4m 8s
docker (DIR=28 VARIANT=slim)	3m 3s
docker (DIR=28 VARIANT=alpine)	3m 35s
docker (DIR=26)	12m 49s
docker (DIR=27)	3m 46s
docker (DIR=26 VARIANT=slim)	7m 2s
docker (DIR=27 VARIANT=slim)	2m 44s
docker (DIR=25 VARIANT=alpine)	6m 46s
docker (DIR=25)	11m 9s
docker (DIR=25 VARIANT=slim)	6m 8s
docker (DIR=27 VARIANT=alpine)	3m 2s
docker (DIR=26 VARIANT=alpine)	7m 38s
docker (DIR=28)	4m 8s
docker (DIR=27 VARIANT=alpine)	3m 2s
docker (DIR=master VARIANT=alpine)	6m 41s
docker (DIR=master)	20s
docker (DIR=26 VARIANT=slim)	7m 2s
docker (DIR=25)	11m 9s
docker (DIR=28 VARIANT=alpine)	3m 35s
docker (DIR=28 VARIANT=slim)	3m 3s
docker (DIR=27)	3m 46s
docker (DIR=27 VARIANT=slim)	2m 44s
docker (DIR=25 VARIANT=alpine)	6m 46s
docker (DIR=26 VARIANT=alpine)	7m 38s
docker (DIR=26)	12m 49s
docker (DIR=25 VARIANT=slim)	6m 8s
	2h 37m 41s

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