Aligning with API

[ronpal]

Description

Please describe the change you have made.

Checklist:

• Tests added/updated.
• Documentation updated. Documentation is generated from docstrings - these must be updated according to your change.
  If a new method has been added it should be referenced in cognite.rst in order to generate docs based on its docstring.
• Changelog updated in CHANGELOG.md.
• Version bumped. If triggering a new release is desired, bump the version number in _version.py and pyproject.toml per semantic versioning.

[codecov]

Codecov Report

Attention: Patch coverage is 95.58011% with 8 lines in your changes missing coverage. Please review.

Project coverage is 90.27%. Comparing base (cb75c7e) to head (9632256).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...e/client/data_classes/hosted_extractors/sources.py	95.55%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1998      +/-   ##
==========================================
+ Coverage   90.24%   90.27%   +0.02%     
==========================================
  Files         139      139              
  Lines       21830    21885      +55     
==========================================
+ Hits        19700    19756      +56     
+ Misses       2130     2129       -1     

Files with missing lines	Coverage Δ
cognite/client/_version.py	100.00% <100.00%> (ø)
...e/client/data_classes/hosted_extractors/sources.py	90.24% <95.55%> (+1.54%)	⬆️

... and 1 file with indirect coverage changes

[doctrino]

I think you can change the authentication in MQTT to BasicAuthenticationWrite and BasicAuthentication.

In addition, this is a bit tricky to keep track of, so lets make a few manual test of the loading logic here.

[doctrino]

Great job!