fix(parser): indentation of description

[lars-reimann]

Summary of Changes

Previously, whitespace was removed from start and end of each line if the description. This removed any indentation, which is needed to detect code blocks (#827). Now only whitespace at the end of a line is removed.

[github-actions]

MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ CREDENTIALS	secretlint	yes		no	3.54s
✅ GIT	git_diff	yes		no	0.01s
✅ JSON	eslint-plugin-jsonc	1	0	0	11.8s
✅ JSON	jsonlint	1		0	3.02s
✅ JSON	prettier	1	0	0	6.61s
✅ JSON	v8r	1		0	1.19s
✅ PYTHON	bandit	2		0	0.31s
✅ PYTHON	black	2	0	0	0.39s
✅ PYTHON	flake8	2		0	0.4s
✅ PYTHON	isort	2	0	0	0.13s
✅ PYTHON	mypy	2		0	42.31s
✅ PYTHON	pylint	2		0	4.7s

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

[github-actions]

🎉 This PR is included in version 1.38.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀