Bump docs-maven-skin from 2.3.0 to 2.3.1 (#40)

Bumps [docs-maven-skin](https://github.com/Bernardo-MG/docs-maven-skin) from 2.3.0 to 2.3.1.
- [Release notes](https://github.com/Bernardo-MG/docs-maven-skin/releases)
- [Commits](Bernardo-MG/docs-maven-skin@v2.3.0...v2.3.1)

---
updated-dependencies:
- dependency-name: com.bernardomg.maven.skins:docs-maven-skin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -88,7 +88,7 @@
     <javadoc-plugin.version>3.4.1</javadoc-plugin.version>
     <source-plugin.version>3.2.1</source-plugin.version>
     <site-plugin.version>3.12.1</site-plugin.version>
-    <docs-maven-skin.version>2.3.0</docs-maven-skin.version>
+    <docs-maven-skin.version>2.3.1</docs-maven-skin.version>
     <info-reports-plugin.version>3.4.2</info-reports-plugin.version>
     <sign-plugin.version>1.0.1</sign-plugin.version>
     <nexus-staging-plugin.version>1.6.13</nexus-staging-plugin.version>