Upgrade embedded setuptools

[gaborbernat]

No description provided.

[codecov]

Codecov Report

Merging #1887 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1887   +/-   ##
=======================================
  Coverage   93.97%   93.97%           
=======================================
  Files          86       86           
  Lines        4184     4184           
=======================================
  Hits         3932     3932           
  Misses        252      252           

Flag	Coverage Δ
#tests	93.97% <ø> (ø)

Impacted Files	Coverage Δ
src/virtualenv/seed/wheels/embed/__init__.py	100.00% <ø> (ø)

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