Bump asciidoctorj from 2.5.4 to 2.5.5

Bumps [asciidoctorj](https://github.com/asciidoctor/asciidoctorj) from 2.5.4 to 2.5.5.
- [Release notes](https://github.com/asciidoctor/asciidoctorj/releases)
- [Changelog](https://github.com/asciidoctor/asciidoctorj/blob/main/CHANGELOG.adoc)
- [Commits](asciidoctor/asciidoctorj@v2.5.4...v2.5.5)

---
updated-dependencies:
- dependency-name: org.asciidoctor:asciidoctorj
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -82,7 +82,7 @@
     <maven-javadoc-plugin.version>3.4.0</maven-javadoc-plugin.version>
     <maven.jar.plugin.version>3.2.2</maven.jar.plugin.version>
     <asciidoctor.maven.plugin.version>2.2.2</asciidoctor.maven.plugin.version>
-    <asciidoctorj.version>2.5.4</asciidoctorj.version>
+    <asciidoctorj.version>2.5.5</asciidoctorj.version>
     <asciidoctorj.pdf.version>2.1.6</asciidoctorj.pdf.version>
     <asciidoctorj.diagram.version>2.2.3</asciidoctorj.diagram.version>
     <buildnumber.plugin.version>1.4</buildnumber.plugin.version>