Use GITHUB_ENV instead of set-output

[jasminabrar]

• set-output command is to be deprecated soon

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (5fc980f) 72.75% compared to head (9c36fe6) 72.75%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #281   +/-   ##
=======================================
  Coverage   72.75%   72.75%           
=======================================
  Files          89       89           
  Lines       10900    10900           
=======================================
  Hits         7930     7930           
  Misses       2970     2970           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.