chore(dev-deps): bump @oclif/plugin-help from 6.2.18 to 6.2.20 #1239

Job	Run time
yarn-lockfile-check / lockfile-check	5s
linux-unit-tests / determine-node-versions	5s
linux-unit-tests / prevent-typescript-dependency / prevent-typescript-dependency	13s
linux-unit-tests / linux-unit-tests (18)	51s
linux-unit-tests / linux-unit-tests (20)	46s
linux-unit-tests / linux-unit-tests (22.12.0)	48s
linux-unit-tests / linux-unit-tests (23)	46s
windows-unit-tests / determine-node-versions	4s
windows-unit-tests / windows-unit-tests (18)	3m 11s
windows-unit-tests / windows-unit-tests (20)	3m 28s
windows-unit-tests / windows-unit-tests (22.12.0)	4m 2s
windows-unit-tests / windows-unit-tests (23)	2m 15s
	16m 34s

Provide feedback