/// <summary>
/// Gets all existing GitHub releases.
/// </summary>
/// <returns>A collection of all existing releases.</returns>
public async Task <IReadOnlyCollection <Release> > GetAllReleasesAsync()
{
var octokitReleases = await _gitHubApi.GetAllReleasesAsync()
.ConfigureAwait(false);
return(octokitReleases
.Select(octokitRelease => new Release(octokitRelease))
.ToList()
.AsReadOnly());
}