tests

chore(dev-deps): bump @salesforce/cli-plugins-testkit #981

Job	Run time
yarn-lockfile-check / lockfile-check	11s
linux-unit-tests / determine-node-versions	3s
linux-unit-tests / linux-unit-tests (current)	1m 11s
linux-unit-tests / linux-unit-tests (lts/*)	1m 20s
linux-unit-tests / linux-unit-tests (lts/-1)	1m 8s
windows-unit-tests / determine-node-versions	3s
nuts (ubuntu-latest) / yarn test:nuts	6m 10s
nuts (windows-latest) / yarn test:nuts	17m 8s
windows-unit-tests / windows-unit-tests (current)	2m 46s
windows-unit-tests / windows-unit-tests (lts/*)	4m 52s
windows-unit-tests / windows-unit-tests (lts/-1)	4m 39s
	39m 31s

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