Add support for GitHub container actions

[ncalteen]

Adds support for GitHub container actions using the image tag in the action.yml/action.yaml file. E.g...

runs:
  using: docker
  image: docker://ghcr.io/actions/container-prebuilt-action:v0.2.0 # Infers `0.2.0`

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	5		0	0.05s
✅ JSON	jsonlint	9		0	0.46s
✅ JSON	prettier	9		0	1.46s
✅ JSON	v8r	9		0	41.89s
✅ MARKDOWN	markdownlint	1		0	0.63s
✅ MARKDOWN	markdown-link-check	1		0	2.64s
✅ REPOSITORY	checkov	yes		no	12.06s
✅ REPOSITORY	gitleaks	yes		no	0.52s
✅ REPOSITORY	git_diff	yes		no	0.08s
✅ REPOSITORY	grype	yes		no	13.51s
✅ REPOSITORY	secretlint	yes		no	0.86s
✅ REPOSITORY	trivy	yes		no	8.94s
✅ REPOSITORY	trivy-sbom	yes		no	1.62s
✅ REPOSITORY	trufflehog	yes		no	15.54s
✅ TYPESCRIPT	eslint	12		0	9.23s
✅ TYPESCRIPT	prettier	12		0	1.99s
✅ XML	xmllint	2		0	0.0s
✅ YAML	prettier	20		0	0.7s
✅ YAML	v8r	20		0	40.98s
✅ YAML	yamllint	20		0	0.38s

See detailed report in MegaLinter reports

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