Merge pull request #89 from apache/dependabot/maven/org.apache.maven.plugins-maven-pmd-plugin-3.21.2

Bump org.apache.maven.plugins:maven-pmd-plugin from 3.20.0 to 3.21.2
diff --git a/pom.xml b/pom.xml
index 6f2e606..bbb1065 100644
--- a/pom.xml
+++ b/pom.xml
@@ -273,7 +273,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-jxr-plugin</artifactId>
-        <version>3.3.0</version>
+        <version>3.3.1</version>
         <configuration>
           <aggregate>true</aggregate>
           <linkJavadoc>true</linkJavadoc>