Tests

Use stricter regex (#11720) #18351

Job	Run time
Checkstyle	2m 11s
Modernizer	1m 3s
CHANGELOG.md	10s
Markdown	6s
OpenRewrite	2m 30s
CHANGELOG.md - only unreleased touched	16s
Code coverage	11m 28s
Database tests	2m 46s
Validate Gradle Wrapper	5s
GUI tests	1m 29s
Find merge conflicts	5s
Unit tests	6m 22s
Source branch is other than "main"	3s
upload-pr-number	2s
	28m 36s

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