magento/devdocs#: Add updateCustomerAddress mutation API errors

[atwixfirster]

Purpose of this pull request

This pull request (PR) adds information about API errors of updateCustomerAddress mutation.

Affected DevDocs pages

• https://devdocs.magento.com/guides/v2.3/graphql/mutations/update-customer-address.html

Links to Magento source code

• Address "id" value should be specified
• Could not find a address with ID "XXX"
• Current customer does not have permission to address with ID "XXX"
• Field "updateCustomerAddress" argument "id" of type "Int!" is required but not provided.
• Field "updateCustomerAddress" argument "id" requires type Int!, found "XXX".
• "input" value must be specified
• Syntax Error: Expected Name, found )
• The current customer isn't authorized.

[devops-devdocs]

An admin must run tests on this PR before it can be merged.

[ghost]

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