Bump doxia-site-renderer from 1.10 to 1.11.1

Bumps [doxia-site-renderer](https://github.com/apache/maven-doxia-sitetools) from 1.10 to 1.11.1.
- [Release notes](https://github.com/apache/maven-doxia-sitetools/releases)
- [Commits](apache/maven-doxia-sitetools@doxia-sitetools-1.10...doxia-sitetools-1.11.1)

---
updated-dependencies:
- dependency-name: org.apache.maven.doxia:doxia-site-renderer
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -102,7 +102,7 @@
     <mavenVersion>3.0.5</mavenVersion>
     <wagonVersion>3.4.3</wagonVersion>
     <doxiaVersion>1.11.1</doxiaVersion>
-    <doxia-sitetoolsVersion>1.10</doxia-sitetoolsVersion>
+    <doxia-sitetoolsVersion>1.11.1</doxia-sitetoolsVersion>
     <pluginVersion>${project.version}</pluginVersion>
     <sitePluginVersion>3.7</sitePluginVersion>
     <project.build.outputTimestamp>2020-08-07T21:31:00Z</project.build.outputTimestamp>