chore: fix OAS for User Login JWT (#5403)

www/apps/api-reference/specs/store/components/schemas/ProductVariant.yaml

@@ -60,7 +60,7 @@ properties:
   sku:
     description: >-
       The unique stock keeping unit used to identify the Product Variant. This
-      will usually be a unqiue identifer for the item that is to be shipped, and
+      will usually be a unique identifer for the item that is to be shipped, and
       can be referenced across multiple systems.
     nullable: true
     type: string