Proper decoding of stdout in condensed download committed or not test

[BreadGenie]

While working on #1165 I noticed that improper decoding of stdout could cause problems in different platforms (had issues on windows). Instead of splitting the string for parsing of the stdout it is properly decoded now.

[codecov-commenter]

Codecov Report

Merging #1172 (cc0c4ba) into main (7b95f5a) will decrease coverage by 2.35%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1172      +/-   ##
==========================================
- Coverage   82.14%   79.79%   -2.36%     
==========================================
  Files         196      197       +1     
  Lines        3383     3484     +101     
  Branches      381      408      +27     
==========================================
+ Hits         2779     2780       +1     
- Misses        512      595      +83     
- Partials       92      109      +17     

Flag	Coverage Δ
longtests	79.79% <100.00%> (-2.36%)	⬇️

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

Impacted Files	Coverage Δ
test/test_condensed_downloads.py	100.00% <100.00%> (ø)
cve_bin_tool/checkers/xml2.py	61.36% <0.00%> (-27.28%)	⬇️
test/test_json.py	68.96% <0.00%> (-20.69%)	⬇️
test/test_scanner.py	61.71% <0.00%> (-12.50%)	⬇️
test/test_cli.py	81.28% <0.00%> (-11.83%)	⬇️
cve_bin_tool/checkers/systemd.py	85.18% <0.00%> (-7.41%)	⬇️
cve_bin_tool/checkers/glibc.py	96.29% <0.00%> (-3.71%)	⬇️
cve_bin_tool/extractor.py	60.15% <0.00%> (-3.13%)	⬇️
cve_bin_tool/cli.py	83.33% <0.00%> (-2.90%)	⬇️
cve_bin_tool/version_scanner.py	82.20% <0.00%> (-1.70%)	⬇️
... and 2 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7b95f5a...cc0c4ba. Read the comment docs.

[terriko]

Looks good to me. Not sure if we'll run into trouble if we wind up with packages that have non-utf-8 in them but that's a problem for future us.