Add support for decrypting Chrome and Edge v20 cookies and passwords

[JSCU-CNI]

This PR adds support for Google Chrome and Microsoft Edge v20 encrypted values.

We moved some stuff around in chromium.py, please let us know if this structure using DECRYPTION_MAP is preferred or not. Will add tests at a later time.

[Schamper]

🇳🇱

[codecov]

Codecov Report

Attention: Patch coverage is 70.58824% with 45 lines in your changes missing coverage. Please review.

Project coverage is 77.86%. Comparing base (81ff5f4) to head (04b6b45).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
dissect/target/plugins/apps/browser/chromium.py	70.39%	45 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1121   +/-   ##
=======================================
  Coverage   77.86%   77.86%           
=======================================
  Files         357      357           
  Lines       32439    32521   +82     
=======================================
+ Hits        25259    25323   +64     
- Misses       7180     7198   +18     

Flag	Coverage Δ
unittests	77.86% <70.58%> (+<0.01%)	⬆️

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[JSCU-CNI]

Thanks for the quick review @Schamper. Implemented your suggestions in 0b56eea and 2482261.