Build base images for SAVE execution #157

Job	Run time
Build custom Paketo builder for CPG-demo	2m 50s
Build base images and push to ghcr.io (eclipse-temurin, 8-focal)	55s
Build base images and push to ghcr.io (eclipse-temurin, 11-focal)	41s
Build base images and push to ghcr.io (eclipse-temurin, 17-focal)	47s
Build base images and push to ghcr.io (python, 2.7)	26s
Build base images and push to ghcr.io (python, 3.5)	33s
Build base images and push to ghcr.io (python, 3.6)	33s
Build base images and push to ghcr.io (python, 3.7)	34s
Build base images and push to ghcr.io (python, 3.8)	30s
Build base images and push to ghcr.io (python, 3.9)	32s
Build base images and push to ghcr.io (python, 3.10)	21s
Build base images and push to ghcr.io (ubuntu, 20.04)	1m 33s
	10m 15s

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