fix: UnitMultiplier type from simulation call is always a float number

[iago1501]

What problem is this solving?

Products are allowed to add float values in unitMultiplier, such as kilogram and meter types, for example:

How to test it?

Select store-graphql at: Workspace

Query:

query getShippingEstimates(
$items: [ShippingItem]
$postalCode: String
$country: String
) {
shipping(items: $items, postalCode: $postalCode, country: $country) {
items {
id
seller
sellerChain
price
listPrice
sellingPrice
measurementUnit
unitMultiplier
}
logisticsInfo {
itemIndex
slas {
id
friendlyName
price
shippingEstimate
shippingEstimateDate
deliveryChannel
}
}
}
}

{
"items": [
{
"id": "1638431",
"quantity": 1,
"seller": "1"
}
],
"country": "BRA",
"postalCode": "49032-000"
}

Screenshots or example usage:

Related to / Depends on

Zendesk: #869926

How does this PR make you feel? :link:

[vtex-io-ci-cd[bot]]

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[vtex-io-ci-cd[bot]]

Your PR has been merged! App is being published. :rocket: Version 2.170.1 → 2.170.2

After the publishing process has been completed (check #vtex-io-releases) and doing A/B tests with the new version, you can deploy your release by running:

vtex deploy vtex.store-graphql@2.170.2

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