Bump doxiaVersion from 2.0.0-M12 to 2.0.0

Bumps `doxiaVersion` from 2.0.0-M12 to 2.0.0.

Updates `org.apache.maven.doxia:doxia-sink-api` from 2.0.0-M12 to 2.0.0
- [Release notes](https:/apache/maven-doxia/releases)
- [Commits](apache/maven-doxia@doxia-2.0.0-M12...doxia-2.0.0)

Updates `org.apache.maven.doxia:doxia-core` from 2.0.0-M12 to 2.0.0
- [Release notes](https:/apache/maven-doxia/releases)
- [Commits](apache/maven-doxia@doxia-2.0.0-M12...doxia-2.0.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.doxia:doxia-sink-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.maven.doxia:doxia-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -78,7 +78,7 @@ under the License.
  <resolverVersion>1.4.1</resolverVersion>
  <checkstyleVersion>9.3</checkstyleVersion>
  <slf4jVersion>1.7.36</slf4jVersion>
- <doxiaVersion>2.0.0-M12</doxiaVersion>
+ <doxiaVersion>2.0.0</doxiaVersion>
  <doxiaSitetoolsVersion>2.0.0-M19</doxiaSitetoolsVersion>
  <sitePluginVersion>3.20.0</sitePluginVersion>
  <jxrPluginVersion>3.4.0</jxrPluginVersion>