Tests

Merge branch 'JabRef:main' into main #3

Job	Run time
CHANGELOG.md	12s
CHANGELOG.md - only unreleased touched	18s
Checkstyle	2m 40s
Code coverage	59s
Database tests	2m 59s
Validate Gradle Wrapper	4s
GUI tests	1m 53s
Markdown	6s
Find merge conflicts	5s
Modernizer	1m 29s
Source branch is other than "main"	3s
OpenRewrite	3m 0s
Validate requirement coverage	47s
Unit tests	4m 57s
upload-pr-number	2s
	19m 34s

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