HADOOP-19679. Fix site:site with Java 17. (#7936)

Author: MikaelSmith

pom.xml

@@ -104,7 +104,7 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/x
     <maven-stylus-skin.version>1.5</maven-stylus-skin.version>
     <maven-antrun-plugin.version>1.7</maven-antrun-plugin.version>
     <maven-assembly-plugin.version>2.4</maven-assembly-plugin.version>
-    <maven-dependency-plugin.version>3.0.2</maven-dependency-plugin.version>
+    <maven-dependency-plugin.version>3.8.1</maven-dependency-plugin.version>
     <maven-enforcer-plugin.version>3.5.0</maven-enforcer-plugin.version>
     <restrict-imports.enforcer.version>2.0.0</restrict-imports.enforcer.version>
     <maven-javadoc-plugin.version>3.0.1</maven-javadoc-plugin.version>