Bump maven-compiler-plugin from 3.8.1 to 3.9.0 (#880)

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
...

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

pom.xml

@@ -475,7 +475,7 @@
 						<plugin>
 							<groupId>org.apache.maven.plugins</groupId>
 							<artifactId>maven-compiler-plugin</artifactId>
-							<version>3.8.1</version>
+							<version>3.9.0</version>
 							<configuration>
 								<source>${maven.compiler.source}</source>
 								<target>${maven.compiler.target}</target>
@@ -524,7 +524,7 @@
 					<plugins>
 						<plugin>
 							<artifactId>maven-compiler-plugin</artifactId>
-							<version>3.8.0</version>
+							<version>3.9.0</version>
 							<configuration>
 								<fork>true</fork>
 								<compilerArgs combine.children="append">