Update some dependencies and plugins

- Update the maven-pmd-plugin plugin to 3.22.0
- Update pmd-core and pmd-java dependencies to 7.1.0

pom.xml

@@ -130,7 +130,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-pmd-plugin</artifactId>
-				<version>3.21.2</version>
+				<version>3.22.0</version>
 				<executions>
 					<execution>
 						<id>pmd-check</id>
@@ -144,12 +144,12 @@
 					<dependency>
 						<groupId>net.sourceforge.pmd</groupId>
 						<artifactId>pmd-core</artifactId>
-						<version>6.55.0</version>
+						<version>7.1.0</version>
 					</dependency>
 					<dependency>
 						<groupId>net.sourceforge.pmd</groupId>
 						<artifactId>pmd-java</artifactId>
-						<version>6.55.0</version>
+						<version>7.1.0</version>
 					</dependency>
 				</dependencies>
 				<configuration>