Bump maven-compiler-plugin from 2.3.2 to 3.8.1

Bumps [maven-compiler-plugin](https://github.com/apache/maven-compiler-plugin) from 2.3.2 to 3.8.1.
- [Release notes](https://github.com/apache/maven-compiler-plugin/releases)
- [Commits](https://github.com/apache/maven-compiler-plugin/compare/maven-compiler-plugin-2.3.2...maven-compiler-plugin-3.8.1)

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 54caf9c..749ba28 100644
--- a/pom.xml
+++ b/pom.xml
@@ -986,7 +986,7 @@
                     JSF 1.2 or special Java 1.5 related artifacts must override these settings.
                     -->
                     <artifactId>maven-compiler-plugin</artifactId>
-                    <version>2.3.2</version>
+                    <version>3.8.1</version>
                     <configuration>
                         <source>1.3</source>
                         <target>1.3</target>