Docker image cleanup #35

Job	Run time
cleanup (rhel-10)	7s
cleanup (rhel-8)	7s
cleanup (tools-rippled-documentation)	5s
cleanup (rhel-9)	19s
cleanup (gcc)	7s
cleanup (debian-bullseye)	28s
cleanup (tools-rippled-pre-commit)	5s
cleanup (ubuntu-jammy)	7s
cleanup (debian-bookworm)	1m 15s
cleanup (tools-rippled-clang-format)	5s
cleanup (tools-rippled-prettier)	6s
cleanup (ubuntu-noble)	24s
	3m 15s

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