Transform to remove Minibatch from model

[zaxtax]

Description

This is a model transform to remove Minibatched variables in a model and replace them with the full underlying data.

This is very handy for posterior predictive checks, prediction, and other out-of-sample uses of the fitted model

Closes #7521

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://pymc--7746.org.readthedocs.build/en/7746/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.83%. Comparing base (6ef135b) to head (ec3b377).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7746   +/-   ##
=======================================
  Coverage   92.82%   92.83%           
=======================================
  Files         107      107           
  Lines       18324    18342   +18     
=======================================
+ Hits        17010    17027   +17     
- Misses       1314     1315    +1     

Files with missing lines	Coverage Δ
pymc/model/transform/basic.py	97.29% <100.00%> (+2.29%)	⬆️

... and 3 files with indirect coverage changes

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