Bump com.github.siom79.japicmp:japicmp-maven-plugin from 0.20.0 to 0.23.1 (#247)

Bumps [com.github.siom79.japicmp:japicmp-maven-plugin](https://github.com/siom79/japicmp) from 0.20.0 to 0.23.1.
- [Release notes](https://github.com/siom79/japicmp/releases)
- [Changelog](https://github.com/siom79/japicmp/blob/master/release.py)
- [Commits](siom79/japicmp@japicmp-base-0.20.0...japicmp-base-0.23.1)

---
updated-dependencies:
- dependency-name: com.github.siom79.japicmp:japicmp-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -435,7 +435,7 @@
         <plugin>
           <groupId>com.github.siom79.japicmp</groupId>
           <artifactId>japicmp-maven-plugin</artifactId>
-          <version>0.20.0</version>
+          <version>0.23.1</version>
         </plugin>
         <!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
         <plugin>