Bump edu.hm.hafner:codingstyle from 5.18.0 to 5.20.0

Bumps [edu.hm.hafner:codingstyle](https://github.com/uhafner/codingstyle) from 5.18.0 to 5.20.0.
- [Release notes](https://github.com/uhafner/codingstyle/releases)
- [Changelog](https://github.com/uhafner/codingstyle/blob/main/CHANGELOG.md)
- [Commits](uhafner/codingstyle@v5.18.0...v5.20.0)

---
updated-dependencies:
- dependency-name: edu.hm.hafner:codingstyle
  dependency-version: 5.20.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -49,7 +49,7 @@
     <j2html.version>1.4.0</j2html.version>
     <streamex.version>0.8.4</streamex.version>
     <testcontainers.version>1.21.3</testcontainers.version>
-    <codingstyle.library.version>5.18.0</codingstyle.library.version>
+    <codingstyle.library.version>5.20.0</codingstyle.library.version>
   </properties>
 
   <dependencies>