Support on_unused_input for string parameter names in eval

[tvwenger]

Description

Implements the feature requested in #1084

Related Issue

• Closes ENH: Allow on_unused_input="ignore" for string keys in eval #1084

Checklist

• Checked that the pre-commit linting/style checks pass
• Included tests that prove the fix is effective or that the new feature works
• Added necessary documentation (docstrings and/or example notebooks)
• If you are a pro: each commit corresponds to a relevant logical change

Type of change

• New feature / enhancement
• Bug fix
• Documentation
• Maintenance
• Other (please specify):

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📚 Documentation preview 📚: https://pytensor--1085.org.readthedocs.build/en/1085/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.10%. Comparing base (d9d8dba) to head (e425531).
Report is 89 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1085   +/-   ##
=======================================
  Coverage   82.10%   82.10%           
=======================================
  Files         183      183           
  Lines       47932    47934    +2     
  Branches     8634     8635    +1     
=======================================
+ Hits        39355    39357    +2     
  Misses       6410     6410           
  Partials     2167     2167           

Files with missing lines	Coverage Δ
pytensor/graph/basic.py	88.69% <100.00%> (+0.03%)	⬆️

[tvwenger]

Thanks for supplying a better workaround for my use case in #1084 I'll leave this PR open though because this would still be a useful feature! I've implemented the change you requested.

[ricardoV94]

Thanks @tvwenger, changes look good