Implement: atmos list workflows #3955

Job	Run time
Tidy Go Modules	29s
Build (ubuntu-latest, linux)	2m 16s
Build (windows-latest, windows)	5m 2s
Build (macos-latest, macos)	1m 10s
Docker Lint	18s
[localstack] demo-localstack	2m 21s
[k3s] demo-helmfile	34s
[lint] demo-context	6s
[lint] quick-start-advanced	6s
[mock-linux] examples/demo-atlantis	6s
[mock-linux] examples/demo-component-versions	11s
Acceptance Tests (ubuntu-latest, linux)	3m 59s
[mock-linux] examples/demo-context	16s
Acceptance Tests (windows-latest, windows)	5m 15s
[mock-linux] examples/demo-vendoring	20s
Acceptance Tests (macos-latest, macos)	2m 45s
[validate] demo-context	6s
[mock-linux] tests/fixtures/scenarios/complete	20s
[validate] demo-localstack	6s
[mock-windows] examples/demo-atlantis	27s
[validate] demo-stacks	4s
[mock-windows] examples/demo-component-versions	43s
[mock-windows] examples/demo-context	24s
[validate] demo-helmfile	5s
[mock-windows] examples/demo-vendoring	56s
[validate] quick-start-advanced	3s
[validate] quick-start-simple	4s
[mock-windows] tests/fixtures/scenarios/complete	1m 4s
[mock-macos] examples/demo-atlantis	9s
[mock-macos] examples/demo-component-versions	18s
[mock-macos] examples/demo-context	16s
[mock-macos] examples/demo-vendoring	28s
[mock-macos] tests/fixtures/scenarios/complete	28s
release	0s
	31m 15s

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