refactor: extract CLI execution into cliExec module with improved UX #2265

Job	Run time
Lint	1m 3s
Integration Test (VS Code stable)	34s
Integration Test (VS Code 1.106.0)	1m 43s
Unit Test (Electron 37)	51s
Unit Test (Electron latest)	53s
Package	24s
	5m 28s

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