dependency: bump org.gaul:modernizer-maven-plugin from 2.7.0 to 2.9.0

Bumps [org.gaul:modernizer-maven-plugin](https://github.com/gaul/modernizer-maven-plugin) from 2.7.0 to 2.9.0.
- [Release notes](https://github.com/gaul/modernizer-maven-plugin/releases)
- [Commits](gaul/modernizer-maven-plugin@modernizer-maven-plugin-2.7.0...modernizer-maven-plugin-2.9.0)

---
updated-dependencies:
- dependency-name: org.gaul:modernizer-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -728,7 +728,7 @@
  <plugin>
  <groupId>org.gaul</groupId>
  <artifactId>modernizer-maven-plugin</artifactId>
- <version>2.7.0</version>
+ <version>2.9.0</version>
  <configuration>
  <javaVersion>${java.version}</javaVersion>
  <includeTestClasses>false</includeTestClasses>