Add .pre-commit-config.yaml

[unixorn]

Description

• Add .pre-commit-config.yaml
• Update mega-lint to v6
• Demote checkov, kics, trivy and yamllint to warnings

Type of changes

Checklist

• All new and existing tests pass.
• Any added/updated scripts added use #!/usr/bin/env interpreter instead of potentially platform-specific direct paths (#!/bin/sh and #!/bin/bash are allowed exceptions)
• Added/updated scripts are marked executable
• Scripts do not have a language file extension unless they are meant to be sourced and not run standalone. No end-user should have to know if a script was written in bash, python, ruby or whatever. Not including file extensions makes it easier to rewrite the script in another language later without having to change every reference to the previous version.
• I have confirmed that the link(s) in my PR are valid.

License Acceptance

• This repository is Apache version 2.0 licensed (some scripts may have alternate licensing inline in their code) and by making this PR, I am contributing my changes to the repository under the terms of the Apache 2 license.

[github-actions]

🦙 MegaLinter status: ❌ ERROR

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
❌ ACTION	actionlint	2		1	0	0.01s
✅ COPYPASTE	jscpd	yes		no	no	1.07s
⚠️ MARKDOWN	markdownlint	5		14	0	0.88s
✅ MARKDOWN	markdown-link-check	5		0	0	4.77s
✅ MARKDOWN	markdown-table-formatter	5		0	0	0.29s
⚠️ REPOSITORY	checkov	yes		3	no	19.51s
✅ REPOSITORY	devskim	yes		no	no	1.18s
✅ REPOSITORY	dustilock	yes		no	no	0.01s
✅ REPOSITORY	gitleaks	yes		no	no	0.24s
✅ REPOSITORY	git_diff	yes		no	no	0.01s
✅ REPOSITORY	grype	yes		no	no	26.46s
⚠️ REPOSITORY	kics	yes		5	no	1.56s
✅ REPOSITORY	secretlint	yes		no	no	1.09s
✅ REPOSITORY	syft	yes		no	no	1.91s
✅ REPOSITORY	trivy	yes		no	no	9.71s
✅ REPOSITORY	trivy-sbom	yes		no	no	0.1s
✅ REPOSITORY	trufflehog	yes		no	no	4.3s
✅ SPELL	lychee	8		0	0	0.82s
⚠️ YAML	prettier	3		1	2	0.67s
✅ YAML	v8r	3		0	0	3.23s
⚠️ YAML	yamllint	3		8	0	0.43s

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