refactor: update logging level

[balajtimate]

Description

• Change logging levels from DEBUG to INFO to clarify when background processes (e.g. alignment with STAR or kallisto quantification) are running, as well as give extra info (number of aligned reads per sample, fraction of orientations)

Checklist

Please carefully read these items and tick them off if the statements are true
or do not apply.

• I have performed a self-review of my own code
• My code follows the existing coding style, lints and generates no new
  warnings
• I have added type annotations to all function/method signatures, and I
  have added type annotations for any local variables that are non-trivial,
  potentially ambiguous or might otherwise benefit from explicit typing.
• I have commented my code in hard-to-understand areas
• I have added ["Google-style docstrings"] to all new modules, classes,
  methods/functions or updated previously existing ones
• I have added tests that prove my fix is effective or that my feature
  works
• New and existing unit tests pass locally with my changes and I have not
  reduced the code coverage relative to the previous state
• I have updated any sections of the app's documentation that are affected
  by the proposed changes

If for some reason you are unable to tick off all boxes, please leave a
comment explaining the issue you are facing so that we can work on it
together.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (ef82690) to head (ac71324).
Report is 1 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff            @@
##               dev      #171   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           13        13           
  Lines         1164      1165    +1     
=========================================
+ Hits          1164      1165    +1     

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