Bump org.asciidoctor:asciidoctorj from 2.5.10 to 2.5.11

Bumps [org.asciidoctor:asciidoctorj](https://github.com/asciidoctor/asciidoctorj) from 2.5.10 to 2.5.11.
- [Release notes](https://github.com/asciidoctor/asciidoctorj/releases)
- [Changelog](https://github.com/asciidoctor/asciidoctorj/blob/main/CHANGELOG.adoc)
- [Commits](asciidoctor/asciidoctorj@v2.5.10...v2.5.11)

---
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>

spec/pom.xml

@@ -15,7 +15,7 @@
 
 	<properties>
 		<asciidoctor-maven.version>2.2.5</asciidoctor-maven.version>
-		<asciidoctorj.version>2.5.10</asciidoctorj.version>
+		<asciidoctorj.version>2.5.11</asciidoctorj.version>
 		<asciidoctorj-pdf.version>2.3.9</asciidoctorj-pdf.version>
 		<!-- asl2 for non-final releases, or final for EFSL -->
 		<license-file>asl2</license-file>