exp/services/ledgerexporter: refactor ledgerexporter cli into sub-commands #3776

Job	Run time
Test and push the Ledger Exporter images	1m 7s
Integration tests (ubuntu-20.04, 1.21, 12, 20)	1m 55s
Integration tests (ubuntu-20.04, 1.21, 12, 21)	1m 57s
Test (and push) verify-range image	2m 55s
Integration tests (ubuntu-20.04, 1.21, 16, 20)	1m 57s
Integration tests (ubuntu-20.04, 1.21, 16, 21)	1m 59s
Integration tests (ubuntu-20.04, 1.22, 12, 20)	2m 17s
Integration tests (ubuntu-20.04, 1.22, 12, 21)	1m 45s
Integration tests (ubuntu-20.04, 1.22, 16, 20)	1m 58s
Integration tests (ubuntu-20.04, 1.22, 16, 21)	2m 8s
Integration tests (ubuntu-22.04, 1.21, 12, 20)	2m 24s
Integration tests (ubuntu-22.04, 1.21, 12, 21)	2m 1s
Integration tests (ubuntu-22.04, 1.21, 16, 20)	2m 7s
Integration tests (ubuntu-22.04, 1.21, 16, 21)	2m 12s
Integration tests (ubuntu-22.04, 1.22, 12, 20)	1m 54s
Integration tests (ubuntu-22.04, 1.22, 12, 21)	2m 7s
Integration tests (ubuntu-22.04, 1.22, 16, 20)	2m 0s
Integration tests (ubuntu-22.04, 1.22, 16, 21)	2m 14s
	36m 57s

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