Bump maven-compiler-plugin from 3.8.1 to 3.9.0

Bumps [maven-compiler-plugin](https://github.com/apache/maven-compiler-plugin) from 3.8.1 to 3.9.0.
- [Release notes](https://github.com/apache/maven-compiler-plugin/releases)
- [Commits](apache/maven-compiler-plugin@maven-compiler-plugin-3.8.1...maven-compiler-plugin-3.9.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-compiler-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -171,7 +171,7 @@
 
 			<plugin>
 				<artifactId>maven-compiler-plugin</artifactId>
-				<version>3.8.1</version>
+				<version>3.9.0</version>
 				<configuration>
 					<compilerId>eclipse</compilerId>
 					<source>1.8</source>