CI: Add missing env variables in nightly tests

[SMoraisAnsys]

Description

As title says.

Issue linked

None

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate tests (unit, integration, system).
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved by the PR if any.
• I have agreed with the Contributor License Agreement (CLA).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.12%. Comparing base (ee9cc5f) to head (d348e21).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6952      +/-   ##
==========================================
- Coverage   81.20%   81.12%   -0.09%     
==========================================
  Files         247      247              
  Lines       78568    78568              
==========================================
- Hits        63805    63738      -67     
- Misses      14763    14830      +67     

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[MaxJPRey]

LGTM.