Bump pmd-java from 6.42.0 to 6.51.0 in /ddk-parent#29

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dependabot/maven/ddk-parent/net.sourceforge.pmd-pmd-java-6.51.0markdomeng/dsl-devkit:dependabot/maven/ddk-parent/net.sourceforge.pmd-pmd-java-6.51.0Copy head branch name to clipboard