Fix test_entry.py::test_license_agr

[ansys-akarcher]

Following license changes in DPF Server, this test was failing

Basically the behavior should not be modified apart from the Operator Construction also throwing a DPF LA Exception.

However the test seemed to run an InProcessServer before even actually running the line which starts a server.

Which caused all plugins to be already loaded, and DPF to be already loaded, and I believe biasing the expected environnement of the test.

This should be merged in synchronization with the Licensing modifications server side

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e0b7883) 87.54% compared to head (8576ac3) 86.85%.
Report is 9 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1381      +/-   ##
==========================================
- Coverage   87.54%   86.85%   -0.69%     
==========================================
  Files          81       81              
  Lines        9360     9646     +286     
==========================================
+ Hits         8194     8378     +184     
- Misses       1166     1268     +102