fix: only import Octokit as type (#721)

Author: Uzlopak

src/index.ts

@@ -1,8 +1,7 @@
 // @ts-expect-error No types for "bottleneck/light"
 import BottleneckLight from "bottleneck/light.js";
 import type TBottleneck from "bottleneck";
-import { Octokit } from "@octokit/core";
-import type { OctokitOptions } from "@octokit/core";
+import type { Octokit, OctokitOptions } from "@octokit/core";
 import type { Groups, State, ThrottlingOptions } from "./types.js";
 import { VERSION } from "./version.js";