feat: replace infra::Variant with std::variant

[daantimmer]

No description provided.

[github-actions]

✅⚠️MegaLinter analysis: Success with warnings

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ ACTION	actionlint	5		0	0	0.22s
✅ CPP	clang-format	166	1	0	0	1.03s
✅ CPP	cppcheck	166		0	0	4.9s
✅ DOCKERFILE	hadolint	1		0	0	0.26s
✅ JSON	jsonlint	8		0	0	0.14s
✅ JSON	prettier	8	1	0	0	0.42s
⚠️ MARKDOWN	markdownlint	4	0	2	0	0.61s
✅ MARKDOWN	markdown-table-formatter	4	0	0	0	0.2s
✅ REPOSITORY	checkov	yes		no	no	14.48s
✅ REPOSITORY	git_diff	yes		no	no	0.01s
✅ REPOSITORY	grype	yes		no	no	28.23s
✅ REPOSITORY	ls-lint	yes		no	no	0.07s
✅ REPOSITORY	secretlint	yes		no	no	1.08s
✅ REPOSITORY	syft	yes		no	no	1.21s
✅ REPOSITORY	trivy	yes		no	no	5.74s
✅ REPOSITORY	trivy-sbom	yes		no	no	0.09s
✅ REPOSITORY	trufflehog	yes		no	no	2.18s
⚠️ SPELL	lychee	35		3	0	2.81s
✅ YAML	prettier	8	1	0	0	0.4s
✅ YAML	v8r	8		0	0	5.13s
✅ YAML	yamllint	8		0	0	0.37s

Detailed Issues

⚠️ SPELL / lychee - 3 errors

[ERROR] https://confluence.atlas.philips.com/display/GITHUB/Contribution+Models | Network error: error sending request for url (https://confluence.atlas.philips.com/display/GITHUB/Contribution+Models) Maybe a certificate error?
[404] https://github.com/philips-software/amp-preview/compare/v1.0.0...v1.1.0 | Network error: Not Found
[403] https://binaries.sonarsource.com/Distribution/sonar-scanner-cli/sonar-scanner-cli-$ | Network error: Forbidden
📝 Summary
---------------------
🔍 Total...........61
✅ Successful......58
⏳ Timeouts.........0
🔀 Redirected.......0
👻 Excluded.........0
❓ Unknown..........0
🚫 Errors...........3

Errors in CHANGELOG.md
[404] https://github.com/philips-software/amp-preview/compare/v1.0.0...v1.1.0 | Network error: Not Found

Errors in .github/workflows/static-analysis.yml
[403] https://binaries.sonarsource.com/Distribution/sonar-scanner-cli/sonar-scanner-cli-$ | Network error: Forbidden

Errors in CONTRIBUTING.md
[ERROR] https://confluence.atlas.philips.com/display/GITHUB/Contribution+Models | Network error: error sending request for url (https://confluence.atlas.philips.com/display/GITHUB/Contribution+Models) Maybe a certificate error?

⚠️ MARKDOWN / markdownlint - 2 errors

CHANGELOG.md:18 error MD024/no-duplicate-heading Multiple headings with the same content [Context: "Features"]
CHANGELOG.md:23 error MD024/no-duplicate-heading Multiple headings with the same content [Context: "Bug Fixes"]

See detailed reports in MegaLinter artifacts

Your project could benefit from a custom flavor, which would allow you to run only the linters you need, and thus improve runtime performances. (Skip this info by defining FLAVOR_SUGGESTIONS: false)

• Documentation: Custom Flavors
• Command: npx mega-linter-runner@9.3.0 --custom-flavor-setup --custom-flavor-linters ACTION_ACTIONLINT,CPP_CPPCHECK,CPP_CLANG_FORMAT,DOCKERFILE_HADOLINT,JSON_JSONLINT,JSON_PRETTIER,MARKDOWN_MARKDOWNLINT,MARKDOWN_MARKDOWN_TABLE_FORMATTER,REPOSITORY_CHECKOV,REPOSITORY_GIT_DIFF,REPOSITORY_GRYPE,REPOSITORY_LS_LINT,REPOSITORY_SECRETLINT,REPOSITORY_SYFT,REPOSITORY_TRIVY,REPOSITORY_TRIVY_SBOM,REPOSITORY_TRUFFLEHOG,SPELL_LYCHEE,YAML_PRETTIER,YAML_YAMLLINT,YAML_V8R