Add a new parseJabRefComment with unit test #20456

Job	Run time
Checkstyle	2m 12s
CHANGELOG.md	13s
CHANGELOG.md - only unreleased touched	18s
Markdown	5s
Modernizer	1m 19s
OpenRewrite	2m 25s
Code coverage	30s
Database tests	2m 43s
Validate Gradle Wrapper	6s
GUI tests	1m 38s
Find merge conflicts	5s
Source branch is other than "main"	3s
Validate requirement coverage	35s
Unit tests	7m 11s
upload-pr-number	2s
	19m 25s

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