Bump net.sourceforge.plantuml:plantuml-mit-light (#360)

Bumps [net.sourceforge.plantuml:plantuml-mit-light](https://github.com/plantuml/plantuml) from 1.2026.5 to 1.2026.6.
- [Release notes](https://github.com/plantuml/plantuml/releases)
- [Changelog](https://github.com/plantuml/plantuml/blob/master/CHANGES.md)
- [Commits](plantuml/plantuml@v1.2026.5...v1.2026.6)

---
updated-dependencies:
- dependency-name: net.sourceforge.plantuml:plantuml-mit-light
  dependency-version: 1.2026.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -155,7 +155,7 @@
       <dependency>
         <groupId>net.sourceforge.plantuml</groupId>
         <artifactId>plantuml-mit-light</artifactId>
-        <version>1.2026.5</version>
+        <version>1.2026.6</version>
       </dependency>
       <dependency>
         <groupId>org.junit.jupiter</groupId>