Update pypi workflow & improve codecov

[oooo26]

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[codecov]

Codecov Report

Merging #383 (516111d) into master (bebbf33) will increase coverage by 1.34%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #383      +/-   ##
==========================================
+ Coverage   93.71%   95.05%   +1.34%     
==========================================
  Files          29       29              
  Lines        3071     3054      -17     
==========================================
+ Hits         2878     2903      +25     
+ Misses        193      151      -42     

Flag	Coverage Δ
Python	97.36% <100.00%> (+3.98%)	⬆️
rpackage	93.88% <ø> (ø)

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Impacted Files	Coverage Δ
python/abess/utilities.py	100.00% <ø> (+6.25%)	⬆️
python/abess/__init__.py	100.00% <100.00%> (ø)
python/abess/decomposition.py	93.75% <100.00%> (+6.65%)	⬆️
python/abess/functions.py	95.06% <100.00%> (+24.27%)	⬆️
python/abess/linear.py	100.00% <0.00%> (+0.50%)	⬆️

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