CommitLog order does not reflect order of commits.

Hi!

I am currently working on an E2E test which involves creating many commits, I am running into some issues however.
The repository's commit log order is different compared to the order of commits I have made.

Reproduction steps

public LibGitRepositoryBuilder WithManyCommits(int numberOfCommits, string commitMessage)
{
    for (int i = 0; i < numberOfCommits; i++)
    {
        // Create & stage file.
        var filePath = Path.Combine(_repoPath, $"{Guid.NewGuid()}.txt");
        File.Create(filePath).Dispose();

        var relativeFilePathToRoot = Path.GetRelativePath(_repository.Info.WorkingDirectory, filePath);
        Commands.Stage(_repository, relativeFilePathToRoot);
        _repository.Commit($"{commitMessage}-{i}", new Signature("bot", "bot@noreply.com", DateTimeOffset.UtcNow), new Signature("bot", "bot@noreply.com", DateTimeOffset.UtcNow));
    }

    return this;
}

var repo = new LibGitRepositoryBuilder(path)
    .WithManyCommits(100, "Hello world")
    .Build();

Expected behavior

• "Hello world-99"
• "Hello world-98"
• "Hello world-97"
• ....

Actual behavior

Version of LibGit2Sharp (release number or SHA1)

0.30.0

Operating system(s) tested; .NET runtime tested

OS
Edition Windows 11 Pro for Workstations
Version 23H2
Installed on ‎22/‎02/‎2024
OS build 22631.3593
Experience Windows Feature Experience Pack 1000.22700.1003.0

.NET
.NET 8.0

首先，使用所示的 LibGitRepositoryBuilder.WithManyCommits 範例重現排序問題，並檢查 repository 提交記錄的列舉方式。Issue 中沒有指定原始檔案或測試，因此請先找到 CommitLog 實作和現有的記錄測試。完成的標準是：依序建立的提交會如預期以最新的提交在前的順序出現。