Update setup.py by removing comma

[auvipy]

https://github.com/celery/kombu/blob/master/setup.py#L116

#7533

[codecov]

Codecov Report

Merging #7534 (8062783) into master (726b664) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #7534   +/-   ##
=======================================
  Coverage   89.26%   89.26%           
=======================================
  Files         138      138           
  Lines       16799    16799           
  Branches     2458     2458           
=======================================
  Hits        14996    14996           
  Misses       1570     1570           
  Partials      233      233           

Flag	Coverage Δ
unittests	89.26% <ø> (ø)

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Impacted Files	Coverage Δ
celery/backends/asynchronous.py	67.09% <0.00%> (ø)

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[lgtm-com]

This pull request fixes 2 alerts when merging 8062783 into 726b664 - view on LGTM.com

fixed alerts:

• 1 for Unused import
• 1 for Module is imported with 'import' and 'import from'