Introduce pnpm lockfile v9 detector

[FernandoRojo]

There is still no official docs for the new v9 lock if format, so this parsing logic is empirically based and will be updated as specs are released
Issue tracking v9 specs: pnpm/spec#6
Format should eventually get updated here: https://github.com/pnpm/spec/blob/master/lockfile

Includes a small refactoring to re-use code and establish consistency between lockfile parsing.

[codecov]

Codecov Report

Attention: Patch coverage is 95.75597% with 16 lines in your changes missing coverage. Please review.

Project coverage is 89.3%. Comparing base (952c1ce) to head (135376b).

Files with missing lines	Patch %	Lines
...rs/pnpm/ParsingUtilities/PnpmV5ParsingUtilities.cs	82.7%	3 Missing and 2 partials ⚠️
...rs/pnpm/ParsingUtilities/PnpmV6ParsingUtilities.cs	72.7%	2 Missing and 1 partial ⚠️
...ComponentDetection.Detectors/pnpm/Pnpm6Detector.cs	66.6%	1 Missing and 2 partials ⚠️
...pm/ParsingUtilities/PnpmParsingUtilitiesFactory.cs	86.6%	1 Missing and 1 partial ⚠️
.../pnpm/ParsingUtilities/PnpmParsingUtilitiesBase.cs	95.0%	0 Missing and 1 partial ⚠️
...ComponentDetection.Detectors/pnpm/Pnpm5Detector.cs	90.9%	0 Missing and 1 partial ⚠️
...ComponentDetection.Detectors/pnpm/Pnpm9Detector.cs	97.8%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##            main   #1283    +/-   ##
======================================
  Coverage   89.3%   89.3%            
======================================
  Files        379     387     +8     
  Lines      30082   30336   +254     
  Branches    1840    1863    +23     
======================================
+ Hits       26870   27120   +250     
- Misses      2821    2822     +1     
- Partials     391     394     +3     

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[github-actions]

👋 Hi! It looks like you modified some files in the Detectors folder.
You may need to bump the detector versions if any of the following scenarios apply:

• The detector detects more or fewer components than before
• The detector generates different parent/child graph relationships than before
• The detector generates different devDependencies values than before

If none of the above scenarios apply, feel free to ignore this comment 🙂