Merge pull request #166 from codehaus-plexus/dependabot/maven/org.apache.maven.plugins-maven-compiler-plugin-3.9.0

Author: dependabot[bot]

pom.xml

@@ -395,7 +395,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.8.1</version>
+          <version>3.9.0</version>
           <configuration>
             <source>${java.version}</source>
             <target>${java.version}</target>