fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-COMMONSIO-1277109

Author: snyk-bot

pom.xml

@@ -135,7 +135,7 @@
             <dependency>
                 <groupId>net.sourceforge.pmd</groupId>
                 <artifactId>pmd-java</artifactId>
-                <version>6.42.0</version>
+                <version>6.46.0</version>
                 <scope>compile</scope>
 
                 <exclusions>