Update  maven-pmd-plugin to 3.22.0

Change-Id: I9013309b218fafec7d1e70c98fb32a683ecc7a0b

pom.xml

diff --git a/pom.xml b/pom.xml
index 8044c10..a7922b5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -277,7 +277,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-pmd-plugin</artifactId>
-          <version>3.21.2</version>
+          <version>3.22.0</version>
           <configuration>
             <inputEncoding>${project.build.sourceEncoding}</inputEncoding>
             <minimumTokens>100</minimumTokens>