Dependency(deps): Bump net.sourceforge.pmd:pmd-java

Bumps [net.sourceforge.pmd:pmd-java](https://github.com/pmd/pmd) from 7.0.0-rc3 to 7.3.0.
- [Release notes](https://github.com/pmd/pmd/releases)
- [Changelog](https://github.com/pmd/pmd/blob/master/docs/render_release_notes.rb)
- [Commits](pmd/pmd@pmd_releases/7.0.0-rc3...pmd_releases/7.3.0)

---
updated-dependencies:
- dependency-name: net.sourceforge.pmd:pmd-java
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

autograder-extra/pom.xml

@@ -16,7 +16,7 @@
 
     <properties>
         <surefire.version>3.3.0</surefire.version>
-        <pmd.version>7.0.0-rc3</pmd.version>
+        <pmd.version>7.3.0</pmd.version>
     </properties>
 
     <dependencies>