Update ruleset location

Author: AB-xdev

demo/pom.xml

@@ -375,7 +375,7 @@
 							<includeTests>true</includeTests>
 							<printFailingErrors>true</printFailingErrors>
 							<rulesets>
-								<ruleset>.config/pmd/ruleset.xml</ruleset>
+								<ruleset>.config/pmd/java/ruleset.xml</ruleset>
 							</rulesets>
 							<excludes>
 								<exclude>**/entities/**/*_.java</exclude>