Bump maven-compiler-plugin from 3.5.1 to 3.8.1

Bumps [maven-compiler-plugin](https://github.com/apache/maven-compiler-plugin) from 3.5.1 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-3.5.1...maven-compiler-plugin-3.8.1)

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index b0b2e38..6da6491 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1162,7 +1162,7 @@
                 </plugin>
                 <plugin>
                     <artifactId>maven-compiler-plugin</artifactId>
-                    <version>3.5.1</version>
+                    <version>3.8.1</version>
                 </plugin>
                 <plugin>
                     <artifactId>maven-dependency-plugin</artifactId>