feat(ci): add MegaLinter GitHub Action for Java projects

[negadras]

Added a GitHub Action workflow to integrate MegaLinter for Java code linting.
The action runs on every push to the main branch and on pull requests,
ensuring code quality through linting and archiving linting reports.

[github-actions]

🦙 MegaLinter status: ⚠️ WARNING

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	2		0	0.01s
✅ JSON	jsonlint	1		0	0.17s
✅ JSON	prettier	1		0	0.37s
✅ JSON	v8r	1		0	2.35s
⚠️ MARKDOWN	markdownlint	3		1	0.47s
✅ MARKDOWN	markdown-link-check	3		0	1.27s
✅ MARKDOWN	markdown-table-formatter	3		0	0.21s
✅ REPOSITORY	checkov	yes		no	13.27s
✅ REPOSITORY	gitleaks	yes		no	0.29s
✅ REPOSITORY	git_diff	yes		no	0.01s
✅ REPOSITORY	grype	yes		no	14.31s
✅ REPOSITORY	secretlint	yes		no	0.82s
✅ REPOSITORY	trivy	yes		no	17.89s
✅ REPOSITORY	trivy-sbom	yes		no	0.35s
✅ REPOSITORY	trufflehog	yes		no	2.25s
✅ SPELL	lychee	7		0	0.43s
✅ XML	xmllint	7		0	0.01s
✅ YAML	prettier	3		0	0.39s
✅ YAML	v8r	3		0	5.56s
✅ YAML	yamllint	3		0	0.32s

See detailed report in MegaLinter reports

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