GH-968: add missing digest functionality to path plugins

[ascopes]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 81.81818% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.41%. Comparing base (54eae7d) to head (eff1320).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...tobufmavenplugin/plugins/ProtocPluginResolver.java	81.82%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #992      +/-   ##
==========================================
+ Coverage   94.30%   94.41%   +0.11%     
==========================================
  Files          78       78              
  Lines        2033     2036       +3     
  Branches      132      131       -1     
==========================================
+ Hits         1917     1922       +5     
+ Misses         80       79       -1     
+ Partials       36       35       -1     

Flag	Coverage Δ
maven-3.9.15-java-17-macos-26	92.74% <18.19%> (-0.03%)	⬇️
maven-3.9.15-java-17-ubuntu-24.04	93.67% <81.82%> (+0.11%)	⬆️
maven-3.9.15-java-17-ubuntu-24.04-arm	92.74% <18.19%> (-0.03%)	⬇️
maven-3.9.15-java-17-windows-2025	91.85% <0.00%> (-0.13%)	⬇️
maven-3.9.15-java-21-ubuntu-24.04	93.67% <81.82%> (+0.11%)	⬆️
maven-3.9.15-java-21-windows-11-arm	91.85% <0.00%> (-0.13%)	⬇️
maven-3.9.15-java-25-ubuntu-24.04	93.67% <81.82%> (+0.11%)	⬆️
maven-3.9.6-java-17-ubuntu-24.04	93.67% <81.82%> (+0.11%)	⬆️
maven-4.0.0-rc-5-java-17-ubuntu-24.04	93.67% <81.82%> (+0.11%)	⬆️

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

Files with missing lines	Coverage Δ
.../protobufmavenplugin/plugins/PathProtocPlugin.java	100.00% <ø> (ø)
...tobufmavenplugin/plugins/ProtocPluginResolver.java	85.86% <81.82%> (+2.53%)	⬆️

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