Bump doxiaVersion from 1.9.1 to 1.10 (#139)

Bumps `doxiaVersion` from 1.9.1 to 1.10.

Updates `doxia-sink-api` from 1.9.1 to 1.10
- [Release notes](https://github.com/apache/maven-doxia/releases)
- [Commits](https://github.com/apache/maven-doxia/compare/doxia-1.9.1...doxia-1.10)

Updates `doxia-core` from 1.9.1 to 1.10
- [Release notes](https://github.com/apache/maven-doxia/releases)
- [Commits](https://github.com/apache/maven-doxia/compare/doxia-1.9.1...doxia-1.10)

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

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/pom.xml b/pom.xml
index b6428a6..031a60c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -90,7 +90,7 @@
 
   <properties>
     <mavenVersion>3.1.1</mavenVersion>
-    <doxiaVersion>1.9.1</doxiaVersion>
+    <doxiaVersion>1.10</doxiaVersion>
     <doxiaSitetoolsVersion>1.10</doxiaSitetoolsVersion>
     <jettyVersion>9.2.28.v20190418</jettyVersion>
     <pluginTestingVersion>3.1.0</pluginTestingVersion>