feat: Support Relative Path Imports #3139

Job	Run time
Build (ubuntu-latest, linux)	36s
Build (windows-latest, windows)	8m 2s
Build (macos-latest, macos)	55s
[localstack] demo-localstack	2m 21s
[k3s] demo-helmfile	43s
Docker Lint	18s
[lint] demo-context	7s
[lint] quick-start-advanced	7s
Acceptance Tests (ubuntu-latest, linux)	1m 11s
[validate] demo-context	3s
Acceptance Tests (windows-latest, windows)	7m 57s
[validate] demo-localstack	3s
[mock-linux] demo-atlantis	5s
Acceptance Tests (macos-latest, macos)	1m 33s
[validate] demo-stacks	3s
[validate] demo-helmfile	3s
[mock-linux] demo-component-versions	8s
[mock-linux] demo-context	15s
[validate] quick-start-advanced	4s
[mock-linux] demo-vendoring	16s
[validate] quick-start-simple	5s
[mock-linux] tests	18s
[mock-windows] demo-atlantis	16s
[mock-windows] demo-component-versions	23s
[mock-windows] demo-context	16s
[mock-windows] demo-vendoring	36s
[mock-windows] tests	46s
[mock-macos] demo-atlantis	11s
[mock-macos] demo-component-versions	14s
[mock-macos] demo-context	15s
[mock-macos] demo-vendoring	21s
[mock-macos] tests	35s
release	0s
	29m 6s

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