Replace PyYAML with ruamel.yaml

[Schamper]

PyYAML has been haunting me in my sleep ever since the early days of Dissect, it's time to get rid of it.

Fingers crossed that these files already had existing unit tests.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 64.51613% with 11 lines in your changes are missing coverage. Please review.

Project coverage is 74.75%. Comparing base (04d3892) to head (2f72bf1).

Files	Patch %	Lines
dissect/target/helpers/network_managers.py	60.00%	6 Missing ⚠️
dissect/target/loaders/target.py	70.00%	3 Missing ⚠️
dissect/target/helpers/configutil.py	66.66%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #563      +/-   ##
==========================================
- Coverage   74.77%   74.75%   -0.03%     
==========================================
  Files         288      288              
  Lines       23928    23929       +1     
==========================================
- Hits        17893    17887       -6     
- Misses       6035     6042       +7     

Flag	Coverage Δ
unittests	74.75% <64.51%> (-0.03%)	⬇️

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