Build(deps): Bump maven-pmd-plugin from 3.14.0 to 3.15.0 (kokorin#219)

Bumps [maven-pmd-plugin](https://github.com/apache/maven-pmd-plugin) from 3.14.0 to 3.15.0.
- [Release notes](https://github.com/apache/maven-pmd-plugin/releases)
- [Commits](apache/maven-pmd-plugin@maven-pmd-plugin-3.14.0...maven-pmd-plugin-3.15.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-pmd-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -266,7 +266,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-pmd-plugin</artifactId>
-                <version>3.14.0</version>
+                <version>3.15.0</version>
                 <configuration>
                     <failOnViolation>true</failOnViolation>
                     <printFailingErrors>true</printFailingErrors>