Improve renovate config

[github-actions[bot]]

MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	3		0	0.02s
✅ CREDENTIALS	secretlint	yes		no	0.88s
✅ GIT	git_diff	yes		no	0.01s
✅ JSON	eslint-plugin-jsonc	1		0	0.92s
✅ SPELL	misspell	4		0	0.04s
✅ YAML	prettier	3		0	0.46s
✅ YAML	yamllint	3		0	0.18s

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_