Ignore internal pushes

[drernie]

Don't try to create a quilt package from an internal pubDir
(test whether the bucket exists)

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ MARKDOWN	markdownlint	1	0	0	0.67s
✅ MARKDOWN	markdown-link-check	1		0	1.38s
✅ MARKDOWN	markdown-table-formatter	1	0	0	0.2s
✅ REPOSITORY	checkov	yes		no	11.17s
✅ REPOSITORY	git_diff	yes		no	0.01s
✅ REPOSITORY	grype	yes		no	12.06s
✅ REPOSITORY	secretlint	yes		no	0.89s
✅ REPOSITORY	trivy	yes		no	3.95s
✅ REPOSITORY	trivy-sbom	yes		no	0.18s
✅ REPOSITORY	trufflehog	yes		no	3.21s

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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