Bump org.asciidoctor:asciidoctorj-pdf from 2.3.10 to 2.3.12

Bumps [org.asciidoctor:asciidoctorj-pdf](https://github.com/asciidoctor/asciidoctorj-pdf) from 2.3.10 to 2.3.12.
- [Release notes](https://github.com/asciidoctor/asciidoctorj-pdf/releases)
- [Changelog](https://github.com/asciidoctor/asciidoctorj-pdf/blob/main/CHANGELOG.adoc)
- [Commits](asciidoctor/asciidoctorj-pdf@v2.3.10...v2.3.12)

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

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

pom.xml

@@ -45,7 +45,7 @@
 
         <!-- Spec document -->
         <asciidoctor-maven.version>2.2.5</asciidoctor-maven.version>
-        <asciidoctorj-pdf.version>2.3.10</asciidoctorj-pdf.version>
+        <asciidoctorj-pdf.version>2.3.12</asciidoctorj-pdf.version>
         <maven.build.timestamp.format>MMMM dd, yyyy</maven.build.timestamp.format>
         <revisiondate>${maven.build.timestamp}</revisiondate>
         <revremark>Draft</revremark>