Tests

Introduce Atmos YAML functions `!include` and `!env` #3811

Job	Run time
Tidy Go Modules	31s
Build (ubuntu-latest, linux)	2m 4s
Build (windows-latest, windows)	7m 39s
Build (macos-latest, macos)	1m 10s
[localstack] demo-localstack	2m 21s
Acceptance Tests (ubuntu-latest, linux)	3m 32s
Docker Lint	19s
[k3s] demo-helmfile	1m 0s
Acceptance Tests (windows-latest, windows)	8m 19s
Acceptance Tests (macos-latest, macos)	2m 25s
[lint] demo-context	7s
[lint] quick-start-advanced	8s
[validate] demo-context	5s
[mock-linux] examples/demo-atlantis	8s
[validate] demo-localstack	6s
[mock-linux] examples/demo-component-versions	11s
[validate] demo-stacks	5s
[mock-linux] examples/demo-context	16s
[validate] demo-helmfile	4s
[mock-linux] examples/demo-vendoring	17s
[validate] quick-start-advanced	3s
[mock-linux] tests/fixtures/scenarios/complete	19s
[validate] quick-start-simple	6s
[mock-windows] examples/demo-atlantis	20s
[mock-windows] examples/demo-component-versions	37s
[mock-windows] examples/demo-context	21s
[mock-windows] examples/demo-vendoring	56s
[mock-windows] tests/fixtures/scenarios/complete	1m 16s
[mock-macos] examples/demo-atlantis	11s
[mock-macos] examples/demo-component-versions	15s
[mock-macos] examples/demo-context	16s
[mock-macos] examples/demo-vendoring	30s
[mock-macos] tests/fixtures/scenarios/complete	27s
release	0s
	36m 24s

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