Add missing MarketplaceId in ListInventorySupplyResponse

[tusbar]

Issues in the MWS doc:

• Specifying a MarketplaceId when querying ListInventorySupply is not US only anymore since Brexit.
• MarketplaceId is also exposed in ListInventorySupplyByNextToken.

[shortcut-integration]

This pull request has been linked to Clubhouse Story #453: Request stocks levels for each marketplace.

[codecov]

Codecov Report

Merging #305 (0328434) into master (173a0c1) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #305   +/-   ##
=======================================
  Coverage   93.66%   93.66%           
=======================================
  Files         195      195           
  Lines        1325     1325           
=======================================
  Hits         1241     1241           
  Misses         84       84           

Impacted Files	Coverage Δ
...fillment-inventory/list-inventory-supply-result.js	100.00% <ø> (ø)

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