Remove boto3

[AleksanderWWW]

Before submitting checklist

• Did you update the CHANGELOG? (not for test updates, internal changes/refactors or CI/CD setup)
• Did you ask the docs owner to review all the user-facing changes?

[AleksanderWWW]

E2E ✅

https://github.com/neptune-ai/neptune-client/actions/runs/8690328117

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 77.28%. Comparing base (5595eb7) to head (2e9e2b2).

Files	Patch %	Lines
src/neptune/internal/artifacts/drivers/s3.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1743      +/-   ##
==========================================
- Coverage   77.58%   77.28%   -0.30%     
==========================================
  Files         243      243              
  Lines       12946    12947       +1     
==========================================
- Hits        10044    10006      -38     
- Misses       2902     2941      +39     

Flag	Coverage Δ
e2e	65.96% <33.33%> (-0.08%)	⬇️
e2e-management	55.86% <0.00%> (-0.02%)	⬇️
e2e-s3	53.02% <33.33%> (-0.08%)	⬇️
e2e-s3-gcs	53.02% <33.33%> (-0.08%)	⬇️
e2e-standard	65.94% <0.00%> (-0.08%)	⬇️
macos	77.15% <33.33%> (-0.35%)	⬇️
py3.10	?
py3.11	?
py3.12	66.00% <33.33%> (-11.76%)	⬇️
py3.7	76.66% <33.33%> (-0.23%)	⬇️
py3.7.16	65.06% <33.33%> (-11.72%)	⬇️
py3.8	?
py3.9	?
ubuntu	77.19% <33.33%> (-0.30%)	⬇️
unit	73.20% <0.00%> (-0.91%)	⬇️
windows	76.86% <33.33%> (-0.27%)	⬇️

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[AleksanderWWW]

E2E (after removing moto) ✅

https://github.com/neptune-ai/neptune-client/actions/runs/8701179472