Feature: job environment variables support linux

[Guts]

Supersedes #345

Closes #322

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 79.42857% with 36 lines in your changes are missing coverage. Please review.

Project coverage is 71.13%. Comparing base (f01ff91) to head (944967c).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #435      +/-   ##
==========================================
+ Coverage   70.04%   71.13%   +1.08%     
==========================================
  Files          44       45       +1     
  Lines        2474     2633     +159     
  Branches      526      566      +40     
==========================================
+ Hits         1733     1873     +140     
- Misses        573      583      +10     
- Partials      168      177       +9     

Flag	Coverage Δ
unittests	70.52% <77.71%> (+1.04%)	⬆️

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

Files	Coverage Δ
...loyment_toolbelt/jobs/job_environment_variables.py	82.35% <73.68%> (+1.10%)	⬆️
qgis_deployment_toolbelt/utils/linux_utils.py	80.12% <80.12%> (ø)

... and 4 files with indirect coverage changes

[sonarcloud]

Quality Gate failed

Failed conditions
9.5% Duplication on New Code (required ≤ 3%)

See analysis details on SonarCloud