Bump asciidoctorj from 1.5.6 to 2.5.2

Bumps [asciidoctorj](https://github.com/asciidoctor/asciidoctorj) from 1.5.6 to 2.5.2.
- [Release notes](https://github.com/asciidoctor/asciidoctorj/releases)
- [Changelog](https://github.com/asciidoctor/asciidoctorj/blob/main/CHANGELOG.adoc)
- [Commits](asciidoctor/asciidoctorj@v1.5.6...v2.5.2)

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

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

Author: dependabot[bot]

pom.xml

@@ -49,7 +49,7 @@
         <encoding>utf-8</encoding>
 
         <asciidoctor.pdf.version>1.5.0-alpha.11</asciidoctor.pdf.version>
-        <asciidoctorj.version>1.5.6</asciidoctorj.version>
+        <asciidoctorj.version>2.5.2</asciidoctorj.version>
         <celesta.version>7.4.11</celesta.version>
 
         <maven.assembly.plugin.version>3.1.0</maven.assembly.plugin.version>