fix: unwanted coercion in to_pydantic_model

[JohannesMessner]

Goals:

This raises the required pydantic version to fix unwanted type coercion in doc.to_pydantic_model(), and by extension, in doc.to_dict().

Before:

from jina import Document

d = Document()
d.tags['title'] = 'Infinity'

print(d.to_pydantic_model())

id='f3fbf26990ef007fe577994b634140db' parent_id=None granularity=None adjacency=None blob=None tensor=None mime_type=None text=None weight=None uri=None tags={'title': 'inf'} offset=None location=None embedding=None modality=None evaluations=None scores=None chunks=None matches=None

Note tags={'title': 'inf'}, it coerced "Infinity" to inf, not what we want.
After:

from jina import Document

d = Document()
d.tags['title'] = 'Infinity'

print(d.to_pydantic_model())

id='f3fbf26990ef007fe577994b634140db' parent_id=None granularity=None adjacency=None blob=None tensor=None mime_type=None text=None weight=None uri=None tags={'title': 'Infinity'} offset=None location=None embedding=None modality=None evaluations=None scores=None chunks=None matches=None

Note tags={'title': 'Infinity'}, no unwanted coercion.

[codecov-commenter]

Codecov Report

Base: 85.14% // Head: 85.21% // Increases project coverage by +0.06% 🎉

Coverage data is based on head (0e5e677) compared to base (6bbcde8).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #949      +/-   ##
==========================================
+ Coverage   85.14%   85.21%   +0.06%     
==========================================
  Files         155      155              
  Lines        8018     8048      +30     
==========================================
+ Hits         6827     6858      +31     
+ Misses       1191     1190       -1     

Flag	Coverage Δ
docarray	85.21% <ø> (+0.06%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
docarray/array/mixins/traverse.py	96.58% <0.00%> (-0.03%)	⬇️
docarray/document/strawberry_type.py	100.00% <0.00%> (ø)
docarray/array/storage/memory/backend.py	100.00% <0.00%> (ø)
docarray/array/mixins/io/binary.py	99.35% <0.00%> (+<0.01%)	⬆️
docarray/base.py	98.76% <0.00%> (+0.01%)	⬆️
docarray/array/storage/redis/backend.py	97.52% <0.00%> (+0.02%)	⬆️
docarray/array/storage/milvus/backend.py	98.24% <0.00%> (+0.02%)	⬆️
docarray/array/storage/elastic/backend.py	97.08% <0.00%> (+0.02%)	⬆️
docarray/array/storage/opensearch/backend.py	95.89% <0.00%> (+0.02%)	⬆️
docarray/array/storage/annlite/backend.py	97.46% <0.00%> (+0.03%)	⬆️
... and 14 more

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[JoanFM]

Can we add a test showing the behavior is correct?