chore(deps): update dependency del-cli to v7 (#20) #266

Job	Run time
lint / lint (lts/iron)	17s
lint / lint (latest)	19s
test / test_linux (lts/iron)	21s
test / test_linux (latest)	19s
test / test_windows (lts/iron)	58s
test / test_windows (latest)	58s
typecheck / typecheck (lts/iron)	18s
typecheck / typecheck (latest)	20s
	3m 50s

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