Bump org.apache.maven.plugins:maven-site-plugin (#362)

Bumps [org.apache.maven.plugins:maven-site-plugin](https://github.com/apache/maven-site-plugin) from 4.0.0-M13 to 4.0.0-M15.
- [Commits](apache/maven-site-plugin@maven-site-plugin-4.0.0-M13...maven-site-plugin-4.0.0-M15)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-site-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -45,7 +45,7 @@
         <maven.jar.plugin.version>3.3.0</maven.jar.plugin.version>
         <maven.plugin.plugin.version>3.11.0</maven.plugin.plugin.version>
         <maven.resources.plugin.version>3.3.1</maven.resources.plugin.version>
-        <maven.site.plugin.version>4.0.0-M13</maven.site.plugin.version>
+        <maven.site.plugin.version>4.0.0-M15</maven.site.plugin.version>
         <maven.surefire.plugin.version>3.2.5</maven.surefire.plugin.version>
         <maven.javadoc.plugin.version>3.6.3</maven.javadoc.plugin.version>
         <maven-source-plugin.version>3.3.0</maven-source-plugin.version>