feat(sync-actions): add set key actions

[NickDevG]

Summary

Adding setkey to Product Discount, Customer and Zone

Description

Adding the detection of the setKey action for the following resources:

• Product Discount
• Customer
• Zone

Adding the corresponding tests for each resource type.

[codecov]

Codecov Report

Merging #1514 into master will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1514   +/-   ##
=======================================
  Coverage   98.62%   98.62%           
=======================================
  Files         128      128           
  Lines        3273     3273           
  Branches      754      754           
=======================================
  Hits         3228     3228           
  Misses         41       41           
  Partials        4        4           

Impacted Files	Coverage Δ
packages/sync-actions/src/customer-actions.js	100.00% <ø> (ø)
...ages/sync-actions/src/product-discounts-actions.js	100.00% <ø> (ø)
packages/sync-actions/src/zones-actions.js	100.00% <ø> (ø)

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[katmatt]

Cool 😎 Thanks a lot 😄 Looks very good to me 👍

[daern91]

Looks great to me, thanks!

[NickDevG]

Perfect, feel free to merge 😉