Use latest maven-plugin-tools

Maven Plugin Tools is a set of tools (plugin, dependencies)
to generate metadata required for the Maven plugin.
As such, we can run the latest and use Dependabot to automate
the management without issues.
We still have CI tests to validate backward compatibility

.github/dependabot.yml

@@ -18,7 +18,6 @@ updates:
     ignore:
       - dependency-name: org.jruby:jruby
       - dependency-name: org.apache.maven:*
-      - dependency-name: org.apache.maven.plugin-tools:*
       - dependency-name: org.apache.maven.doxia:*
       - dependency-name: org.codehaus.plexus:*
       - dependency-name: commons-io:commons-io

CHANGELOG.adoc

@@ -58,6 +58,7 @@ Build / Infrastructure::
   * Improvements to dependency management (#690)
   * Test Javadoc generation in CI (#690)
   * Fix maven-deploy-plugin and prerequisites Maven warnings (#709)
+  * Use latest maven-plugin-tools and remove Dependabot exclusion (CI test ensure backward compatibility) (#717)
 
 Maintenance::
   * Replace use of reflection by direct JavaExtensionRegistry calls to register extensions (#596)

asciidoctor-maven-plugin/pom.xml

@@ -22,7 +22,7 @@
     </prerequisites>
 
     <properties>
-        <maven.plugin.plugin.version>3.8.1</maven.plugin.plugin.version>
+        <maven-plugin-tools.version>3.10.2</maven-plugin-tools.version>
         <netty.version>4.1.104.Final</netty.version>
     </properties>
 
@@ -51,7 +51,7 @@
         <dependency>
             <groupId>org.apache.maven.plugin-tools</groupId>
             <artifactId>maven-plugin-annotations</artifactId>
-            <version>${maven.plugin.plugin.version}</version>
+            <version>${maven-plugin-tools.version}</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
@@ -90,7 +90,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-plugin-plugin</artifactId>
-                    <version>${maven.plugin.plugin.version}</version>
+                    <version>${maven-plugin-tools.version}</version>
                     <configuration>
                         <goalPrefix>asciidoctor</goalPrefix>
                         <skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>