CI: Update env variable to not use Delcross

[SMoraisAnsys]

Description

Follow up of dotnet changes. Delcross in so longer required in LD_LIBRARY_PATH.

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).

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.75%. Comparing base (34f3198) to head (1490f0d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5509   +/-   ##
=======================================
  Coverage   84.74%   84.75%           
=======================================
  Files         144      144           
  Lines       60189    60189           
=======================================
+ Hits        51008    51013    +5     
+ Misses       9181     9176    -5     

[Samuelopez-ansys]

LGTM