MNT use github actions for continuous integration

[TomDLT]

Fixes #81 Also fixes #79 and closes #82

[codecov[bot]]

Codecov Report

Merging #84 (a53f544) into main (43381a8) will decrease coverage by 18.70%. The diff coverage is 95.83%.

@@             Coverage Diff             @@
##             main      #84       +/-   ##
===========================================
- Coverage   58.85%   40.15%   -18.71%     
===========================================
  Files          11       15        +4     
  Lines        1541     2209      +668     
===========================================
- Hits          907      887       -20     
- Misses        634     1322      +688     

Impacted Files	Coverage Δ
cottoncandy/tests/test_roundtrip_big.py	84.61% <75.00%> (-4.58%)	:arrow_down:
cottoncandy/interfaces.py	58.99% <100.00%> (+0.38%)	:arrow_up:
cottoncandy/tests/conftest.py	100.00% <100.00%> (ø)
cottoncandy/tests/test_compression.py	100.00% <100.00%> (ø)
cottoncandy/tests/test_roundtrip.py	100.00% <100.00%> (ø)
cottoncandy/Encryption.py	0.00% <0.00%> (ø)
cottoncandy/gdriveclient.py	0.00% <0.00%> (ø)
setup.py	0.00% <0.00%> (ø)

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[TomDLT]

Note that the tests are passing, the failure comes from codecov not getting the correct coverage (only 7%).

[TomDLT]

Codecov is no more at 7%, but it is only at 40%, because some new code (encryption, googledrive client) is not tested at all (report).

[anwarnunez]

Codecov gives a "failure" if the coverage decreases? That's rather forceful. If things are running, I say merge it into main.