Docker image cleanup #47

Job	Run time
cleanup (rhel-8)	13s
cleanup (rhel-9)	16s
cleanup (ubuntu-noble)	33s
cleanup (tools-rippled-pre-commit)	7s
cleanup (ubuntu-jammy)	12s
cleanup (tools-rippled-prettier)	5s
cleanup (debian-bullseye)	16s
cleanup (tools-rippled-clang-format)	4s
cleanup (tools-rippled-documentation)	4s
cleanup (debian-bookworm)	50s
cleanup (gcc)	4s
cleanup (rhel-10)	8s
	2m 52s

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