Merge branch 'dependabot/maven/org.apache.maven.plugins-maven-site-pl…

…ugin-3.9.1'

Merge dependabot PR:  Bump maven-site-plugin from 3.7.1 to 3.9.1 #2

pom.xml

@@ -410,7 +410,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-site-plugin</artifactId>
-        <version>3.7.1</version>
+        <version>3.9.1</version>
         <configuration>
           <!-- disable generateReports if you don't want to include the built-in reports -->
           <generateReports>true</generateReports>