upgrade to postgres:16rc1 #417

Job	Run time
Build docker image for 12-3.4 variant default	59s
Build docker image for 12-3.4 variant alpine	4m 55s
Build docker image for 13-3.4 variant default	1m 10s
Build docker image for 13-3.4 variant alpine	4m 47s
Build docker image for 14-3.4 variant default	58s
Build docker image for 14-3.4 variant alpine	4m 6s
Build docker image for 15-3.4 variant default	1m 14s
Build docker image for 15-3.4 variant alpine	5m 33s
Build docker image for 16rc1-3.4 variant default	1m 8s
Build docker image for 16rc1-3.4 variant alpine	4m 34s
Build docker image for 14-master variant default	34m 11s
Build docker image for 15-master variant default	33m 53s
Build docker image for 16rc1-master variant default	34m 4s
Build docker image for 11-3.3 variant default	56s
Build docker image for 11-3.3 variant alpine	3m 49s
	2h 16m 17s

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