Refactoring pkg Archivista API and include new http client for Archivista

[kairoaraujo]

What this PR does / why we need it

• Refactor package Archivista API
• Add package Archivista HTTP Client

Acceptance Criteria Met

• Docs changes if needed
• Testing changes if needed
• All workflow checks passing (automatically enforced)
• All review conversations resolved (automatically enforced)
• DCO Sign-off

Special notes for your reviewer:

[codecov]

Codecov Report

Attention: Patch coverage is 37.58389% with 93 lines in your changes missing coverage. Please review.

Project coverage is 1.84%. Comparing base (a035c62) to head (e41b846).
Report is 207 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/http-client/client.go	37.75%	58 Missing and 3 partials ⚠️
pkg/api/download.go	18.18%	26 Missing and 1 partial ⚠️
pkg/api/graphql.go	66.66%	2 Missing and 1 partial ⚠️
pkg/api/upload.go	75.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #424       +/-   ##
==========================================
- Coverage   82.40%   1.84%   -80.56%     
==========================================
  Files          10     124      +114     
  Lines         358   33565    +33207     
==========================================
+ Hits          295     620      +325     
- Misses         43   32883    +32840     
- Partials       20      62       +42     

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