Update oxsecurity/megalinter digest to ef7b689

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
oxsecurity/megalinter	action	digest	7cb18ee -> ef7b689

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ COPYPASTE	jscpd	yes		no	1.77s
✅ REPOSITORY	dustilock	yes		no	0.02s
✅ REPOSITORY	gitleaks	yes		no	0.44s
✅ REPOSITORY	git_diff	yes		no	0.03s
✅ REPOSITORY	grype	yes		no	9.88s
✅ REPOSITORY	secretlint	yes		no	0.84s
✅ REPOSITORY	syft	yes		no	0.2s
✅ REPOSITORY	trivy	yes		no	4.31s
✅ REPOSITORY	trivy-sbom	yes		no	2.91s
✅ REPOSITORY	trufflehog	yes		no	3.24s

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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