fix: sanitize outputs to not override any pre-defined environment variables

[ecrupper]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.28%. Comparing base (7e0fb6d) to head (a63abc5).
Report is 1 commits behind head on main.

❌ Your project status has failed because the head coverage (62.28%) is below the target coverage (90.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #629      +/-   ##
==========================================
+ Coverage   62.10%   62.28%   +0.18%     
==========================================
  Files         122      123       +1     
  Lines        8325     8365      +40     
==========================================
+ Hits         5170     5210      +40     
  Misses       2915     2915              
  Partials      240      240              

Files with missing lines	Coverage Δ
executor/linux/build.go	75.43% <100.00%> (+0.21%)	⬆️
executor/linux/stage.go	78.40% <100.00%> (+0.76%)	⬆️
executor/local/build.go	75.67% <100.00%> (+0.44%)	⬆️
executor/local/stage.go	82.65% <100.00%> (+1.13%)	⬆️
internal/outputs/sanitize.go	100.00% <100.00%> (ø)

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.