feat: reuse github headers for token validation

Author: freaktechnik

scripts/github.js

@@ -155,9 +155,8 @@ export default class GitHub {
                 'access_token': token,
             }),
             headers: {
+                ...this.headers,
                 Authorization: `Basic ${globalThis.btoa(`${this.clientID}:${this.clientSecret}`)}`,
-                Accept: 'application/vnd.github+json',
-                'X-GitHub-Api-Version': '2022-11-28',
             },
         });
         if(method == "POST") {