chore(deps): update dependency org.apache.maven.plugins:maven-pmd-plugin to v3.26.0

Author: renovate[bot]

pom.xml

@@ -105,7 +105,7 @@
         <spotbugs-maven-plugin.version>4.9.3.0</spotbugs-maven-plugin.version>
         <spotbugs.version>4.9.3</spotbugs.version>
         <properties-maven-plugin.version>1.0.0</properties-maven-plugin.version>
-        <maven-pmd-plugin.version>3.21.2</maven-pmd-plugin.version>
+        <maven-pmd-plugin.version>3.26.0</maven-pmd-plugin.version>
         <p3c-pmd.version>2.2.1.0x</p3c-pmd.version>
         <build-helper-maven-plugin.version>3.6.1</build-helper-maven-plugin.version>
         <maven-build-helper.version>1.5.4</maven-build-helper.version>