fix: allow Any type for classInput

[vincentsarago]

Args and Kwargs don't have to be of type string for the Class. Without this change, trying to pass something else than a string will raise a pydantic error

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.39%. Comparing base (6eb527a) to head (230632b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #182   +/-   ##
=======================================
  Coverage   89.39%   89.39%           
=======================================
  Files          29       29           
  Lines        1273     1273           
  Branches      170      170           
=======================================
  Hits         1138     1138           
  Misses         92       92           
  Partials       43       43           

Flag	Coverage Δ
unittests	89.39% <100.00%> (ø)

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[alukach]

Seems reasonable, not sure why it was set to str