Update dependency org.apache.maven.plugins:maven-compiler-plugin to v3.9.0

Author: renovate-bot

pom.xml

@@ -224,7 +224,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.8.1</version>
+                <version>3.9.0</version>
                 <configuration>
                     <source>1.8</source>
                     <target>1.8</target>