Bump com.arpnetworking.commons:javassist-maven-plugin (#774)

Bumps [com.arpnetworking.commons:javassist-maven-plugin](https://github.com/ArpNetworking/maven-javassist) from 0.2.8 to 0.2.9.
- [Commits](ArpNetworking/maven-javassist@javassist-maven-parent-0.2.8...javassist-maven-parent-0.2.9)

---
updated-dependencies:
- dependency-name: com.arpnetworking.commons:javassist-maven-plugin
  dependency-version: 0.2.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -133,7 +133,7 @@
     <build.helper.maven.plugin.version>3.6.0</build.helper.maven.plugin.version>
     <commons.io.version>2.19.0</commons.io.version>
     <docker.maven.plugin.version>0.46.0</docker.maven.plugin.version>
-    <javassist.maven.plugin.version>0.2.8</javassist.maven.plugin.version>
+    <javassist.maven.plugin.version>0.2.9</javassist.maven.plugin.version>
     <maven.assembly.plugin.version>3.7.1</maven.assembly.plugin.version>
     <rpm.maven.plugin.version>2.3.0</rpm.maven.plugin.version>
     <play.maven.plugin.version>1.0.5</play.maven.plugin.version>