Bump maggma to fix pydantic model sanitization

[munrojm]

Bumps maggma to use changes in materialsproject/maggma#690

[codecov-commenter]

Codecov Report

Merging #644 (8ca871c) into main (9f99e6d) will increase coverage by 0.11%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #644      +/-   ##
==========================================
+ Coverage   84.87%   84.98%   +0.11%     
==========================================
  Files          35       36       +1     
  Lines        1481     1492      +11     
==========================================
+ Hits         1257     1268      +11     
  Misses        224      224              

Impacted Files	Coverage Δ
src/mp_api/client.py	69.48% <100.00%> (+0.11%)	⬆️
src/mp_api/routes/__init__.py	100.00% <100.00%> (ø)
src/mp_api/routes/alloys.py	100.00% <100.00%> (ø)

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