fix: add common rarity to magic items rarity enum

[Rmulorm]

What does this do?

This PR fixes the issue that when quering the API using GraphQL for Magic Items and there is a magic Item with Common Rarity, the API return a 500 response because there no "Common" rarity listed on the enum for the GrapQL.

How was it tested?

Using the Apollo sandbox explorer perform the following query with the following Variables:
Query:

query MagicItemsQuery($equipmentCategory: StringFilter, $order: MagicItemOrder) {
  magicItems(equipment_category: $equipmentCategory, order: $order) {
    index
    name
    desc
    rarity
    equipment_category {
      index
      name
    }
  }
}

Variables

{
  "equipmentCategory": null,
  "order": {
    "by": "EQUIPMENT_CATEGORY",
    "direction": "ASCENDING",
    "then_by": {
      "by": "NAME",
      "direction": "ASCENDING",
    }
  }
}

Is there a Github issue this is resolving?

This resolves issue #331

Was any impacted documentation updated to reflect this change?

<It's not clear if I don't update this text with relevant info>

Here's a fun image for your troubles

[techwraith]

When can we get this merged and deployed? It's been about a week without a fix.

[SleeplessOne1917]

@bagelbits @fergcb Could one of you approve this and merge it? It seems I missed a spot when making the GraphQL API.

[fergcb]

LGTM

[bagelbits]

It'll merge in after the tests run. Good catch!

[bagelbits]

Apparently, @fergcb's approval doesn't count.

[fergcb]

Apparently, @fergcb's approval doesn't count.

😢

[github-actions]

🎉 This PR is included in version 2.5.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀

[techwraith]

As mentioned in #331, this fix worked great for the original error, but unfortunately there's a new one now: GraphQL error: Enum "MagicItemRarity" cannot represent value: "ARTIFACT"

[techwraith]

Here's PR to fix that error as well: #334