OpenAPI Update (#1272)

* Update OpenAPI for c23be6a8e5e8778c1e7ecba3d52554a29b58ea27

* manually updated fixtures

---------

Co-authored-by: Stripe OpenAPI <105521251+stripe-openapi[bot]@users.noreply.github.com>
Co-authored-by: Jesse Rosalia <[email protected]>

Author: stripe-openapi[bot]

embedded/openapi/fixtures3.json

@@ -495,7 +495,9 @@
     },
     "subscription_cancel": {
      "retention": {
-      "coupon_offer": null,
+      "coupon_offer": {
+       "coupon": "coupon"
+      },
       "type": "coupon_offer"
      },
      "subscription": "subscription"
@@ -2406,15 +2408,25 @@
         "invoice_item": "invoice_item",
         "proration": true,
         "proration_details": {
-         "credited_items": null
+         "credited_items": {
+          "invoice": "invoice",
+          "invoice_line_items": [
+           "invoice_line_items"
+          ]
+         }
         },
         "subscription": null
        },
        "subscription_item_details": {
         "invoice_item": null,
         "proration": true,
         "proration_details": {
-         "credited_items": null
+         "credited_items": {
+          "invoice": "invoice",
+          "invoice_line_items": [
+           "invoice_line_items"
+          ]
+         }
         },
         "subscription": "subscription",
         "subscription_item": "subscription_item"
@@ -3151,15 +3163,25 @@
      "invoice_item": "invoice_item",
      "proration": true,
      "proration_details": {
-      "credited_items": null
+      "credited_items": {
+       "invoice": "invoice",
+       "invoice_line_items": [
+        "invoice_line_items"
+       ]
+      }
      },
      "subscription": null
     },
     "subscription_item_details": {
      "invoice_item": null,
      "proration": true,
      "proration_details": {
-      "credited_items": null
+      "credited_items": {
+       "invoice": "invoice",
+       "invoice_line_items": [
+        "invoice_line_items"
+       ]
+      }
      },
      "subscription": "subscription",
      "subscription_item": "subscription_item"
@@ -6180,4 +6202,4 @@
    "error": []
   }
  }
-}
+}