fix: minimal reqwest features

[dbolduc]

Use the minimal feature set for reqwest so downstream crates do not have to pull in extra deps.

Thanks to @lerouxrgd for the original PR: #1806

This is a good change, and we want it to be included in our release (which we want to do today).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.09%. Comparing base (a7c42d2) to head (1f723f1).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1810   +/-   ##
=======================================
  Coverage   96.09%   96.09%           
=======================================
  Files          54       54           
  Lines        1998     1998           
=======================================
  Hits         1920     1920           
  Misses         78       78           

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