Merge pull request #684 from quickfix-j/dependabot/maven/org.apache.maven.plugins-maven-pmd-plugin-3.21.2

Bump org.apache.maven.plugins:maven-pmd-plugin from 3.19.0 to 3.21.2

Author: chrjohn

pom.xml

@@ -80,7 +80,7 @@
 		<maven-compiler-plugin-version>3.10.1</maven-compiler-plugin-version>
 		<maven-jar-plugin-version>3.3.0</maven-jar-plugin-version>
 		<maven-surefire-plugin-version>3.0.0</maven-surefire-plugin-version>
-		<maven-pmd-plugin-version>3.19.0</maven-pmd-plugin-version>
+		<maven-pmd-plugin-version>3.21.2</maven-pmd-plugin-version>
 		<maven-source-plugin-version>3.2.1</maven-source-plugin-version>
 		<maven-javadoc-plugin-version>3.5.0</maven-javadoc-plugin-version>
 		<maven-shade-plugin-version>3.4.1</maven-shade-plugin-version>