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

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.apache.maven.plugins:maven-compiler-plugin (source)	3.8.0 -> 3.9.0

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pom.xml

@@ -108,7 +108,7 @@
         </plugin>
         <plugin>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.8.0</version>
+          <version>3.9.0</version>
         </plugin>
         <plugin>
           <artifactId>maven-surefire-plugin</artifactId>