TST: Redirect test stdout to the qmflows logger and re-enable sphinx tests

[BvB93]

No description provided.

[codecov]

Codecov Report

Merging #297 (13086e7) into master (13e9f0f) will increase coverage by 0.61%.
The diff coverage is 90.00%.

@@            Coverage Diff             @@
##           master     #297      +/-   ##
==========================================
+ Coverage   83.83%   84.45%   +0.61%     
==========================================
  Files          60       60              
  Lines        2407     2431      +24     
  Branches      411      414       +3     
==========================================
+ Hits         2018     2053      +35     
+ Misses        290      282       -8     
+ Partials       99       96       -3     

Impacted Files	Coverage Δ
src/qmflows/_settings.py	90.76% <ø> (ø)
src/qmflows/packages/_cp2k_mm.py	84.33% <ø> (ø)
src/qmflows/packages/_scm.py	68.75% <ø> (ø)
src/qmflows/packages/__init__.py	91.66% <75.00%> (-8.34%)	⬇️
src/qmflows/test_utils.py	81.45% <86.66%> (+2.36%)	⬆️
src/qmflows/__init__.py	100.00% <100.00%> (+17.85%)	⬆️
src/qmflows/_logger.py	100.00% <100.00%> (ø)
src/qmflows/packages/_package_wrapper.py	89.28% <100.00%> (ø)
src/qmflows/packages/_packages.py	84.15% <0.00%> (+1.50%)	⬆️
... and 2 more

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