Bump maven wrapper version

Author: monkstone

.mvn/wrapper/maven-wrapper.properties

@@ -1,2 +1,2 @@
-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.1/apache-maven-3.8.1-bin.zip
 wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

pom.xml

@@ -11,7 +11,7 @@ DO NOT MODIFY - GENERATED CODE
   <modelVersion>4.0.0</modelVersion>
   <groupId>ruby-processing</groupId>
   <artifactId>jruby_art</artifactId>
-  <version>2.5.0</version>
+  <version>2.5.1</version>
   <name>jruby_art</name>
   <description>Jar for JRubyArt</description>
   <url>https://github.com/ruby-processing/JRubyArt</url>