Make AWS obey excludes

[bethac07]

Description

The syntax used for the AWS sync command in collate.py works if used outside subprocess, but in the context of of subprocess, quotes should not be used. H/T to @bdiazroh for letting me know something was up.

What is the nature of your change?

• Bug fix (fixes an issue).

Checklist

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• I have read the CONTRIBUTING.md guidelines.
• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• New and existing unit tests pass locally with my changes.
• I have added tests that prove my fix is effective or that my feature works.
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[codecov-commenter]

Codecov Report

Merging #256 (008a72f) into master (7e57132) will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master     #256   +/-   ##
=======================================
  Coverage   95.71%   95.71%           
=======================================
  Files          53       53           
  Lines        2826     2826           
=======================================
  Hits         2705     2705           
  Misses        121      121           

Flag	Coverage Δ
unittests	95.71% <0.00%> (ø)

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Impacted Files	Coverage Δ
pycytominer/cyto_utils/collate.py	54.73% <0.00%> (ø)

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[bethac07]

File had indeed already been blacked - single quotes was due to the previous double-quotes inside. Running black again produces no changes.