How can we commit changes using the access token key that gets generated using oauth support in gitHub

How can we commit changes to github using the access token generated using github Oauth.

I have got the access token and able to clone the repository using the code below
CloneOptions options = new CloneOptions();
var creds = new UsernamePasswordCredentials()
{
Username = "access token"
Password = string.Empty
};
CredentialsHandler credHandler = (_url, _user, _cred) => creds;
options.CredentialsProvider = credHandler;
string clonedRepoPath = Repository.Clone("repository", repoLocation, options);
repo = new Repository(repoLocation);

But unbale to commit the changes using the access token. below code fails with the error "'request failed with status code: 403"

Commands.Stage(repo, "abc.txt");
Signature sig = new Signature(new Identity("name", "email"), DateTimeOffset.Now);
Commit commit = repo.Commit("", sig, sig);

        // Push to remote repository
        var creds = new UsernamePasswordCredentials()
        {
            Username = "access token",
            Password = ""
        };
        CredentialsHandler credHandler = (_url, _user, _cred) => creds;
       
        var fetchOpts = new PushOptions { CredentialsProvider = credHandler };
        repo.Network.Push(repo.Network.Remotes["origin"], "HEAD", @"refs/heads/master", fetchOpts);

Expected: Should be able to commit changes using access token.

Version of LibGit2Sharp (release number or SHA1)
LibGit2Sharp.0.26.2

Operating system(s) tested; .NET runtime tested
OSx, .net core 5.0

從 issue 中 CloneOptions 和 PushOptions 的認證設定開始，在 .NET 5.0 上使用 LibGit2Sharp 0.26.2。重現 Network.Push 呼叫期間的 403，並檢查涉及的 remote、refspec 和認證。當可以使用 OAuth token 將已暫存的變更提交並推送到 GitHub repository 時，即表示完成。