Bump org.asciidoctor:asciidoctor-maven-plugin from 2.2.5 to 2.2.6

Bumps [org.asciidoctor:asciidoctor-maven-plugin](https://github.com/asciidoctor/asciidoctor-maven-plugin) from 2.2.5 to 2.2.6.
- [Release notes](https://github.com/asciidoctor/asciidoctor-maven-plugin/releases)
- [Changelog](https://github.com/asciidoctor/asciidoctor-maven-plugin/blob/asciidoctor-maven-plugin-2.2.6/CHANGELOG.adoc)
- [Commits](asciidoctor/asciidoctor-maven-plugin@asciidoctor-maven-plugin-2.2.5...asciidoctor-maven-plugin-2.2.6)

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

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

Author: dependabot[bot]

pom.xml

@@ -7,7 +7,7 @@
 	<name>Eclipse UI best practices</name>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<asciidoctor.maven.plugin.version>2.2.5</asciidoctor.maven.plugin.version>
+		<asciidoctor.maven.plugin.version>2.2.6</asciidoctor.maven.plugin.version>
 		<best.practices.document.version>v4-DRAFT</best.practices.document.version>
 	</properties>
 	<build>