Consolidate cos7 and alma8 docker files #510

Job	Run time
Keep alive	0s
linux-anvil-cos7-x86_64:latest (amd64)	2m 1s
linux-anvil-ppc64le:latest (ppc64le)	9m 20s
linux-anvil-aarch64:latest (arm64)	13m 33s
linux-anvil-cuda:11.8 (amd64)	3m 51s
linux-anvil-ppc64le-cuda:11.8 (ppc64le)	14m 11s
linux-anvil-aarch64-cuda:11.8 (arm64)	15m 3s
linux-anvil-alma-x86_64:8 (amd64)	1m 59s
linux-anvil-alma-aarch64:8 (arm64)	9m 29s
linux-anvil-alma-ppc64le:8 (ppc64le)	8m 30s
	1h 17m 57s

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