Use the new codecov uploader

[s0undt3ch]

https://about.codecov.io/blog/introducing-codecovs-new-uploader/

[codecov]

Codecov Report

Merging #72 (6dbb8f2) into master (714308c) will increase coverage by 11.56%.
The diff coverage is n/a.

❗ Current head 6dbb8f2 differs from pull request most recent head 909d47f. Consider uploading reports for the commit 909d47f to get more accurate results

@@             Coverage Diff             @@
##           master      #72       +/-   ##
===========================================
+ Coverage   61.48%   73.03%   +11.56%     
===========================================
  Files         134      135        +1     
  Lines        7239     7240        +1     
  Branches      828      828               
===========================================
+ Hits         4450     5287      +837     
+ Misses       2560     1675      -885     
- Partials      229      278       +49     

Flag	Coverage Δ
	?
Linux	78.25% <ø> (+17.84%)	⬆️
factories	78.25% <ø> (-3.47%)	⬇️
macOS	?
py36	77.72% <ø> (+0.01%)	⬆️
py37	77.72% <ø> (-0.62%)	⬇️
py38	78.25% <ø> (+17.85%)	⬆️
py39	78.25% <ø> (+0.01%)	⬆️
pytest	78.25% <ø> (+0.01%)	⬆️
salt_3002_6	78.25% <ø> (-0.61%)	⬇️
salt_3003	78.25% <ø> (-0.09%)	⬇️
system	?
tests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ests/functional/utils/saltext/test_log_handlers.py	94.12% <ø> (ø)
...sts/integration/utils/saltext/test_log_handlers.py	100.00% <ø> (ø)
tests/unit/utils/saltext/test_log_handlers.py	100.00% <ø> (ø)
src/saltfactories/daemons/minion.py	79.00% <0.00%> (-17.00%)	⬇️
src/saltfactories/daemons/proxy.py	74.79% <0.00%> (-16.80%)	⬇️
src/saltfactories/daemons/master.py	77.02% <0.00%> (-15.52%)	⬇️
src/saltfactories/utils/processes.py	68.43% <0.00%> (-15.03%)	⬇️
src/saltfactories/bases.py	82.77% <0.00%> (-9.06%)	⬇️
src/saltfactories/manager.py	87.12% <0.00%> (-6.74%)	⬇️
src/saltfactories/plugins/log_server.py	92.31% <0.00%> (-5.98%)	⬇️
... and 50 more