PPY-67: Added --no-cleanup flag to neptune sync to prevent cleanup of local logs after synchronization

[SiddhantSadangi]

The current neptune sync architecture expects all containers to be synced to be moved to the async folder. Once the containers are synced, the local logs are deleted.

This change adds a --no-cleanup flag to neptune sync to prevent cleanup of local logs after synchronization,even though the logs will be moved to the async folder.

Running neptune sync --no-cleanup again deletes the local logs of already synced containers anyway from the async folder. Need help figuring this out (not a priority)

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?

[codecov]

Codecov Report

Attention: Patch coverage is 82.85714% with 6 lines in your changes missing coverage. Please review.

Project coverage is 75.61%. Comparing base (9747b21) to head (8af3d2c).

Files with missing lines	Patch %	Lines
src/neptune/cli/commands.py	25.00%	3 Missing ⚠️
src/neptune/cli/sync.py	77.77%	2 Missing ⚠️
src/neptune/cli/containers.py	95.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           dev/1.x    #1892      +/-   ##
===========================================
- Coverage    77.60%   75.61%   -1.99%     
===========================================
  Files          303      303              
  Lines        15384    15373      -11     
===========================================
- Hits         11938    11624     -314     
- Misses        3446     3749     +303     

Flag	Coverage Δ
e2e	?
e2e-management	?
e2e-s3	?
e2e-s3-gcs	?
macos	75.33% <82.85%> (-1.96%)	⬇️
py3.10	?
py3.11	?
py3.12	?
py3.8	75.61% <82.85%> (-1.96%)	⬇️
py3.9	?
ubuntu	75.48% <82.85%> (-1.96%)	⬇️
unit	75.61% <82.85%> (-0.03%)	⬇️
windows	74.52% <82.85%> (-1.97%)	⬇️

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