feat: add x-accepted-github-permissions (#609)

https://docs.github.com/en/rest/using-the-rest-api/troubleshooting-the-rest-api?apiVersion=2022-11-28#resource-not-accessible

Author: jsoref

src/ResponseHeaders.ts

@@ -10,6 +10,7 @@ export type ResponseHeaders = {
   server?: string;
   status?: string;
   vary?: string;
+  "x-accepted-github-permissions"?: string;
   "x-github-mediatype"?: string;
   "x-github-request-id"?: string;
   "x-oauth-scopes"?: string;