chore: getUploadsToProcess error handling

[achettyiitr]

Description

• Error handling for getUploadToProcess.
• More at here.

Notion Ticket

https://www.notion.so/rudderstacks/GetUploadToProcess-error-handling-04fe991f6a90426195f8a9db78fd6e08?pvs=4

Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.04 ⚠️

Comparison is base (9ddf745) 68.45% compared to head (eeea7b5) 68.42%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3380      +/-   ##
==========================================
- Coverage   68.45%   68.42%   -0.04%     
==========================================
  Files         329      329              
  Lines       52709    52709              
==========================================
- Hits        36084    36068      -16     
- Misses      14294    14305      +11     
- Partials     2331     2336       +5     

Impacted Files	Coverage Δ
warehouse/errors.go	89.47% <ø> (ø)
warehouse/warehouse.go	63.58% <0.00%> (-0.76%)	⬇️

... and 8 files with indirect coverage changes

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[fracasula]

Looking good, feel free to add a test.