Change the QueueLdapSync calls to use Post<T>(uri) with no body/data

Octokit/Http/IApiConnection.cs

@@ -100,6 +100,15 @@ namespace Octokit
         /// <exception cref="ApiException">Thrown when an API error occurs.</exception>
         Task Post(Uri uri);
 
+        /// <summary>
+        /// Creates a new API resource in the list at the specified URI.
+        /// </summary>
+        /// <typeparam name="T">The API resource's type.</typeparam>
+        /// <param name="uri">URI endpoint to send request to</param>
+        /// <returns>The created API resource.</returns>
+        /// <exception cref="ApiException">Thrown when an API error occurs.</exception>
+        Task<T> Post<T>(Uri uri);
+        
         /// <summary>
         /// Creates a new API resource in the list at the specified URI.
         /// </summary>