[7-dev] use the new ml pipeline

[mnvoh]

Pull Request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build-related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

The model at <root>/cameratokeyboard/model.pt is used, which is also commited into the repo.

Issue Number: #7

What is the new behavior?

• Checks for new models trained by the CI and stored in S3
• If a new version exists, downloads it to <user_data_dir>/c2k/models/<version>.pt
• Upon running the app, automatically uses the latest version

Does this introduce a breaking change?

• Yes
• No

Other information

Closes #7

[sonarcloud]

Quality Gate passed

Issues
4 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 90.40000% with 12 lines in your changes are missing coverage. Please review.

Project coverage is 94.15%. Comparing base (4ac1b0a) to head (c0b0ebd).

Files	Patch %	Lines
cameratokeyboard/model/model_downloader.py	84.00%	8 Missing ⚠️
cameratokeyboard/config.py	89.65%	3 Missing ⚠️
cameratokeyboard/model/train.py	94.44%	1 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff             @@
##             main       #9       +/-   ##
===========================================
+ Coverage   79.86%   94.15%   +14.28%     
===========================================
  Files          18       20        +2     
  Lines         909     1009      +100     
===========================================
+ Hits          726      950      +224     
+ Misses        183       59      -124     

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