feat: @value annotation to replace @attribute, @constant, @optional, @required

[lars-reimann]

Closes #874.

Summary of Changes

• New annotation @value that subsumes @attribute, @constant, @optional, and @required
• Migration script for old annotation data to new schema
• @attribute annotations are no longer available since they were very specific to sklearn. The migration script replaces them with @optional annotations with the same default value.

Screenshots (if necessary)

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[github-actions]

MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ CREDENTIALS	secretlint	yes		no	3.71s
✅ GIT	git_diff	yes		no	0.01s
✅ JSON	eslint-plugin-jsonc	13	0	0	3.2s
✅ JSON	jsonlint	13		0	3.81s
✅ JSON	prettier	13	0	0	2.61s
✅ JSON	v8r	13		0	7.16s
✅ KOTLIN	ktlint	49	0	0	113.28s
✅ PYTHON	bandit	10		0	0.36s
✅ PYTHON	black	10	0	0	0.49s
✅ PYTHON	flake8	10		0	0.51s
✅ PYTHON	isort	10	0	0	0.15s
✅ PYTHON	mypy	10		0	51.59s
✅ PYTHON	pylint	10		0	3.11s
✅ TSX	eslint	24	0	0	14.17s
✅ TYPESCRIPT	eslint	31	0	0	12.15s
✅ TYPESCRIPT	prettier	55	0	0	6.3s

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[github-actions]

🎉 This PR is included in version 1.38.0 🎉

The release is available on GitHub release

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