Some cleanup: isort, updated classifiers, remove unused kwarg

[Andrew-S-Rosen]

This PR accomplishes three and only three things:

1. I applied isort . on the repo.
2. I updated the Python classifiers in setup.py to include 3.7 through 3.11 instead of just 3.7.
3. I removed an unused kwarg from maggma.stores.file_store.FileStore.connect().

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.01% ⚠️

Comparison is base (12bba1c) 88.10% compared to head (8df0172) 88.09%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #833      +/-   ##
==========================================
- Coverage   88.10%   88.09%   -0.01%     
==========================================
  Files          44       44              
  Lines        3631     3629       -2     
==========================================
- Hits         3199     3197       -2     
  Misses        432      432              

Files Changed	Coverage Δ
src/maggma/api/resource/__init__.py	100.00% <100.00%> (ø)
src/maggma/api/resource/aggregation.py	89.58% <100.00%> (ø)
src/maggma/api/resource/core.py	80.00% <100.00%> (ø)
src/maggma/api/resource/read_resource.py	85.71% <100.00%> (-0.14%)	⬇️
src/maggma/api/resource/s3_url.py	58.33% <100.00%> (-0.86%)	⬇️
src/maggma/api/utils.py	95.94% <100.00%> (ø)
src/maggma/cli/__init__.py	86.58% <100.00%> (ø)
src/maggma/cli/distributed.py	81.09% <100.00%> (ø)
src/maggma/cli/multiprocessing.py	94.73% <100.00%> (ø)
src/maggma/stores/aws.py	91.74% <100.00%> (ø)
... and 6 more

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