feat(internal/uploader): UDENG-5706 ubuntu insights uploader

[hk21702]

Implements the uploader component along with relevant tests.

• For a given source, find all the collected reports
• Check min age against the report timestamp
• Parse correct URL/endpoint
• Check consent, replace payload with opt out if out out
• Send payload to server with 10 second timeout
• Write payload to uploaded folder, remove report from collected folder

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UDENG-5706

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 91.57509% with 23 lines in your changes missing coverage. Please review.

Please upload report for BASE (main@5ad0e21). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
internal/fileutils/fileutils.go	40.00%	8 Missing and 4 partials ⚠️
internal/uploader/upload.go	92.56%	6 Missing and 3 partials ⚠️
internal/uploader/uploader.go	93.33%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main       #9   +/-   ##
=======================================
  Coverage        ?   75.66%           
=======================================
  Files           ?       17           
  Lines           ?      567           
  Branches        ?        0           
=======================================
  Hits            ?      429           
  Misses          ?      118           
  Partials        ?       20           

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