Support OIDC with a provided Access Token

[da1910]

We currently only support providing a refresh token for OIDC use, this is certainly a more robust solution but not all IDPs and deployments are configured to allow the offline_access scope, and sometimes we do not have access to a refresh token at all.

This PR allows users to provide an access token for short-lived scripts.

[codecov]

Codecov Report

Attention: Patch coverage is 93.33333% with 1 line in your changes missing coverage. Please review.

Project coverage is 94.40%. Comparing base (68db120) to head (9ef3362).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/ansys/openapi/common/_session.py	88.88%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #773      +/-   ##
==========================================
- Coverage   94.43%   94.40%   -0.03%     
==========================================
  Files           7        7              
  Lines         790      804      +14     
==========================================
+ Hits          746      759      +13     
- Misses         44       45       +1     

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[Andy-Grigg]

Worth doing a 2.2.3 patch release?