Bump org.apache.maven.doxia:doxia-sink-api from 2.0.0 to 2.1.0 (#1595)

Bumps [org.apache.maven.doxia:doxia-sink-api](https://github.com/apache/maven-doxia) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/apache/maven-doxia/releases)
- [Commits](apache/maven-doxia@doxia-2.0.0...doxia-2.1.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.doxia:doxia-sink-api
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

pom.xml

@@ -147,7 +147,7 @@ under the License.
     <dependency>
       <groupId>org.apache.maven.doxia</groupId>
       <artifactId>doxia-sink-api</artifactId>
-      <version>2.0.0</version>
+      <version>2.1.0</version>
     </dependency>
 
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