fix: Add several missing fields to the Order model

[sradevski]

You can see the fields existing at least since 2022-07 version: https://shopify.dev/docs/api/admin-rest/2022-07/resources/order

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (8813f0d) 100.00% compared to head (17ddb67) 100.00%.

:exclamation: Current head 17ddb67 differs from pull request most recent head a9ca1f0. Consider uploading reports for the commit a9ca1f0 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #214 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 44 44 Lines 1715 1715 ========================================= Hits 1715 1715 ``` | [Impacted Files](https://app.codecov.io/gh/bold-commerce/go-shopify/pull/214?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Bold+Commerce) | Coverage Δ | | |---|---|---| | [order.go](https://app.codecov.io/gh/bold-commerce/go-shopify/pull/214?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Bold+Commerce#diff-b3JkZXIuZ28=) | `100.00% <ø> (ø)` | |

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