Bump org.easymock:easymock from 5.4.0 to 5.5.0

Bumps [org.easymock:easymock](https://github.com/easymock/easymock) from 5.4.0 to 5.5.0.
- [Release notes](https://github.com/easymock/easymock/releases)
- [Changelog](https://github.com/easymock/easymock/blob/master/ReleaseNotes.md)
- [Commits](easymock/easymock@easymock-5.4.0...easymock-5.5.0)

---
updated-dependencies:
- dependency-name: org.easymock:easymock
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -127,7 +127,7 @@
     <commons.jacoco.complexityRatio>0.78</commons.jacoco.complexityRatio>
     <doxia.module.markdown.version>1.12.0</doxia.module.markdown.version>
     <math.mathjax.version>2.7.9</math.mathjax.version>
-    <commons.easymock.version>5.4.0</commons.easymock.version>
+    <commons.easymock.version>5.5.0</commons.easymock.version>
   </properties>
   <build>
     <defaultGoal>clean verify apache-rat:check pmd:check checkstyle:check japicmp:cmp javadoc:javadoc</defaultGoal>