Handle error in uploader go routine

[ashmeenkaur]

Description

Link to the issue in case of a bug fix.

NA

Testing details

1. Manual - NA
2. Unit tests - NA
3. Integration tests - NA

[codecov]

Codecov Report

Attention: Patch coverage is 71.53846% with 37 lines in your changes missing coverage. Please review.

Project coverage is 77.22%. Comparing base (cac0ace) to head (c9bfd1a).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/bufferedwrites/upload_handler.go	71.42%	16 Missing and 6 partials ⚠️
internal/storage/mock/mock_writer.go	50.00%	6 Missing ⚠️
internal/storage/mock/testify_mock_bucket.go	0.00%	6 Missing ⚠️
internal/fs/inode/file.go	89.28%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2695      +/-   ##
==========================================
+ Coverage   77.21%   77.22%   +0.01%     
==========================================
  Files         113      113              
  Lines       15873    15963      +90     
==========================================
+ Hits        12256    12328      +72     
- Misses       3093     3104      +11     
- Partials      524      531       +7     

Flag	Coverage Δ
unittests	77.22% <71.53%> (+0.01%)	⬆️

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