feat: use cloud file upload delivery endpoint if vault cloud or endpoint override used

[christieb7007]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 4 lines in your changes missing coverage. Please review.

Project coverage is 85.76%. Comparing base (62088cd) to head (2930a27).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
packages/form-upload/src/Upload.js	33.33%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1509      +/-   ##
==========================================
- Coverage   92.16%   85.76%   -6.41%     
==========================================
  Files         190        8     -182     
  Lines        5334      295    -5039     
  Branches     1647       77    -1570     
==========================================
- Hits         4916      253    -4663     
+ Misses        418       42     -376     

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