Upgrade maven-pmd-plugin to 3.14.0

Change-Id: I45b49e1262db50e74b43c6273d3b3df692765330
Signed-off-by: Marco Miller <marco.miller@ericsson.com>

pom.xml

diff --git a/pom.xml b/pom.xml
index b4c6cc4..2ee3d0f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -299,7 +299,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-pmd-plugin</artifactId>
-          <version>3.13.0</version>
+          <version>3.14.0</version>
           <configuration>
             <sourceEncoding>utf-8</sourceEncoding>
             <minimumTokens>100</minimumTokens>