Update PMD packages to v7.9.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
net.sourceforge.pmd:pmd-java (source)	7.8.0 -> 7.9.0
net.sourceforge.pmd:pmd-core (source)	7.8.0 -> 7.9.0

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.60%. Comparing base (7cb5e3e) to head (2efe247).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #932   +/-   ##
=========================================
  Coverage     77.60%   77.60%           
  Complexity      270      270           
=========================================
  Files            61       61           
  Lines          2125     2125           
  Branches        299      299           
=========================================
  Hits           1649     1649           
  Misses          343      343           
  Partials        133      133           

Flag	Coverage Δ
unittests	77.60% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.