Renews a customer access token.
Access token renewal must happen *before* a token expires.
If a token has already expired, a new one should be created instead via `customerAccessTokenCreate`.
Access Scopes
`unauthenticated_write_customers` access scope.
Arguments
customerAccessToken:
String! -
The access token used to identify the customer.
Returns
customerAccessToken:
CustomerAccessToken
The renewed customer access token object.
userErrors:
UserError!
The list of errors that occurred from executing the mutation.