Switch to mega-linter

[unixorn]

Description

• Switch to mega-linter. Closes superlinter moved #15
• Add dependabot configuration so this doesn't happen again

Type of changes

• A link to an external resource like a blog post
• Add a new document
• Text cleanups/typo fixes
• Test updates

Copyright Assignment

• This document is covered by the Apache 2.0 License, and I agree to contribute this PR under the terms of the license.

Checklist

• I have confirmed that any link(s) in my PR are valid.
• Any new links to resources outside this repository are single lines and are in alphabetical order.
• All new and existing tests passed.

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	1		0	0.01s
✅ COPYPASTE	jscpd	yes		no	1.6s
✅ REPOSITORY	devskim	yes		no	0.87s
✅ REPOSITORY	dustilock	yes		no	0.01s
✅ REPOSITORY	gitleaks	yes		no	0.12s
✅ REPOSITORY	git_diff	yes		no	0.02s
✅ REPOSITORY	kics	yes		no	13.36s
✅ REPOSITORY	secretlint	yes		no	0.96s
✅ REPOSITORY	syft	yes		no	0.39s
✅ YAML	prettier	2		0	0.57s
✅ YAML	v8r	2		0	3.38s
✅ YAML	yamllint	2		0	0.32s

See detailed report in MegaLinter reports
Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff

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