build: use @octokit/core@6

Author: wolfy1339

package-lock.json

@@ -24,7 +24,7 @@
   "author": "Wolfy1339 <webmaster@wolfy1339.com>",
   "license": "MIT",
   "devDependencies": {
-    "@octokit/core": "^5.0.0",
+    "@octokit/core": "^6.0.0",
     "deep-equal": "^2.0.5",
     "github-enterprise-server-versions": "^2.0.1",
     "lodash": "^4.17.21",