Use the new square SVG image for PMD results

[uhafner]

See pmd/pmd#4970

[github-actions]

☀️   Quality Monitor

   🚦   Tests: 100 % successful (✔️ 1273 passed, 🙈 2 skipped)
   〰️   Line Coverage: 93% (470 missed lines)
   ➰   Branch Coverage: 88% (256 missed branches)
     CheckStyle: No warnings found
     PMD: No warnings found
     SpotBugs: No warnings found

Created by Quality Monitor v1.7.0 (#823c682). More details are shown in the GitHub Checks Result.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 89.78%. Comparing base (11fe67a) to head (3c75b1b).
Report is 9 commits behind head on main.

Files	Patch %	Lines
...edu/hm/hafner/analysis/registry/PmdDescriptor.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1055   +/-   ##
=========================================
  Coverage     89.78%   89.78%           
  Complexity     2246     2246           
=========================================
  Files           352      352           
  Lines          6520     6520           
  Branches        674      674           
=========================================
  Hits           5854     5854           
  Misses          470      470           
  Partials        196      196           

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