Transferring git repository using REST API fails

Question

I'm trying to achieve Github repo transfer (on both private and public repos) via their REST API. For this I have tried the below options

1. With Github App and Oktokit

   const app = new App({ appId: <App_Id>, privateKey: <Private_Key>, });

   const octokit = await app.getInstallationOctokit(<Installation_Id>);

   let data = await octokit.request("POST /repos/{owner}/{repo}/transfer", { owner, new_owner, new_name })

Error: "Resource not accessible by integration"

2. Github PAT token and Octokit

   const octokit = new Octokit({auth: "<PAT_Token>"});

   const response = await octokit.rest.repos.transfer({ owner, repo, new_owner });

Error: "Resource not accessible by personal access token"

3. Tried with Plain curl URL as well; however no luck, similar error response.

I have given all permission for this test drive. no luck!

Am I missing anything here? I would appreciate any help on this.