chore: add devcontainer definition

[daantimmer]

No description provided.

[github-actions]

🦙 MegaLinter status: ⚠️ WARNING

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	5		0	0.07s
⚠️ MARKDOWN	markdownlint	20	14	2	1.98s
⚠️ MARKDOWN	markdown-link-check	20		18	50.94s
✅ MARKDOWN	markdown-table-formatter	20	14	0	0.52s
✅ REPOSITORY	checkov	yes		no	14.47s
✅ REPOSITORY	dustilock	yes		no	0.03s
✅ REPOSITORY	gitleaks	yes		no	72.82s
✅ REPOSITORY	git_diff	yes		no	0.32s
✅ REPOSITORY	kics	yes		no	13.18s
✅ REPOSITORY	secretlint	yes		no	22.05s
✅ REPOSITORY	syft	yes		no	0.52s
✅ REPOSITORY	trivy	yes		no	5.07s
✅ XML	xmllint	17	0	0	0.34s
✅ YAML	prettier	7	1	0	0.97s
✅ YAML	v8r	7		0	5.41s
✅ YAML	yamllint	7		0	0.38s

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