Merge pull request #178 from AxonFramework/dependabot/maven/org.apache.maven.plugins-maven-compiler-plugin-3.9.0

Bump maven-compiler-plugin from 3.8.1 to 3.9.0

Author: smcvb

pom.xml

@@ -286,7 +286,7 @@
         </plugin>
         <plugin>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.8.1</version>
+          <version>3.9.0</version>
           <configuration>
             <source>1.8</source>
             <target>1.8</target>