add CI job to push cloud images to ECR #180

Job	Run time
Find directories with Dockerfiles	10s
Build and push tembo-pg-slim (14.10, 14)	40m 5s
Build and push tembo-pg-slim (15.3, 15)	40m 10s
Build and push tembo-pg-slim (16.1, 16)	41m 28s
Build and push images (./standard-cnpg, standard-cnpg)	8m 37s
Build and push images (./tembo-pg-cnpg, tembo-pg-cnpg)	3m 20s
Build and push images (./tembo-local-slim, tembo-local-slim)	57s
Build and push images (./tembo-local, tembo-local)	1m 26s
Build and push images (./ml-cnpg, ml-cnpg)	21m 26s
Build and push images (./dw-cnpg, dw-cnpg)	10m 51s
	2h 48m 30s

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