Improve GH Actions

[ruzickap]

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[github-actions]

MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	4		0	0.02s
✅ CREDENTIALS	secretlint	yes		no	0.86s
✅ GIT	git_diff	yes		no	0.01s
✅ SPELL	misspell	4		0	0.04s
✅ YAML	prettier	4		0	0.55s
✅ YAML	yamllint	4		0	0.14s

See errors details in artifact MegaLinter reports on CI Job page
Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff