ci: used environment for variables and secrets in tests

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 92.77%. Comparing base (7030849) to head (090d8e5).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #277 +/- ## ======================================= Coverage 92.77% 92.77% ======================================= Files 34 34 Lines 1079 1079 Branches 157 157 ======================================= Hits 1001 1001 Misses 77 77 Partials 1 1 ```

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