Update maven-compiler-plugin version

Author: lrhodes

pom.xml

@@ -65,7 +65,7 @@
         <!-- Maven Plugins -->
         <maven-assembly-plugin.version>3.1.0</maven-assembly-plugin.version>
         <maven-clean-plugin.version>3.1.0</maven-clean-plugin.version>
-        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
+        <maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
         <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
         <maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
         <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>