feat: add ability to exit Finalize() callback WITHOUT removing the finalizer

[btlghrants]

Description

Adds ability for Module Author to "opt out" of removing Pepr's metadata.finalizers entry.

End to End Test:
pepr-excellent-examples #172

Related Issue

Fixes #1316

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Other (security config, docs update, etc)

Checklist before merging

• Unit, Journey, E2E Tests, docs, adr added or updated as needed
• Contributor Guide Steps followed

[codecov]

Codecov Report

Attention: Patch coverage is 11.11111% with 8 lines in your changes missing coverage. Please review.

Project coverage is 85.64%. Comparing base (055a8f4) to head (2e4d970).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/lib/watch-processor.ts	0.00%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1321      +/-   ##
==========================================
- Coverage   86.00%   85.64%   -0.36%     
==========================================
  Files          31       31              
  Lines        1443     1449       +6     
  Branches      339      319      -20     
==========================================
  Hits         1241     1241              
- Misses        184      206      +22     
+ Partials       18        2      -16     

Files with missing lines	Coverage Δ
src/lib/capability.ts	94.90% <100.00%> (ø)
src/lib/types.ts	100.00% <ø> (ø)
src/lib/watch-processor.ts	79.20% <0.00%> (-5.01%)	⬇️

... and 3 files with indirect coverage changes