Bump org.codehaus.mojo:javacc-maven-plugin from 2.6 to 3.1.1

Bumps [org.codehaus.mojo:javacc-maven-plugin](https://github.com/mojohaus/javacc-maven-plugin) from 2.6 to 3.1.1.
- [Release notes](https://github.com/mojohaus/javacc-maven-plugin/releases)
- [Commits](mojohaus/javacc-maven-plugin@javacc-maven-plugin-2.6...3.1.1)

---
updated-dependencies:
- dependency-name: org.codehaus.mojo:javacc-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -464,7 +464,7 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>javacc-maven-plugin</artifactId>
-        <version>2.6</version>
+        <version>3.1.1</version>
         <executions>
           <execution>
             <id>javacc</id>