collection of tagged union deserialization bug fixed.

[dapper91]

Fixes the bug when a field of a tagged union collection type:

class FloatSubModel(BaseXmlModel):
    type: Literal['float'] = attr()
    data: float


class StringSubModel(BaseXmlModel):
    type: Literal['string'] = attr()
    data: str


TaggedUnion = Annotated[Union[FloatData, StringData], Field(discriminator='type')]

class Model(BaseXmlModel):
    collection: list[TaggedUnion]

Fixes the issue #206

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.89%. Comparing base (3b81aeb) to head (a62b518).

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Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #207      +/-   ##
==========================================
+ Coverage   91.83%   91.89%   +0.06%     
==========================================
  Files          29       29              
  Lines        1617     1617              
==========================================
+ Hits         1485     1486       +1     
+ Misses        132      131       -1     

Flag	Coverage Δ
unittests	91.89% <ø> (+0.06%)	⬆️

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