chore: change type for adminSdkJson parameter

src/libs/fcm/verifyFcmToken.ts

@@ -1,8 +1,9 @@
+import type { AdminSdkCredentials } from "./getGoogleAuthToken";
 import { sendFcmMessage } from "./sendFcmMessage";
 
 export async function verifyFcmToken(
   token: string,
-  adminSdkJson: string,
+  adminSdkJson: AdminSdkCredentials,
 ): Promise<boolean> {
   return sendFcmMessage(
     adminSdkJson,