migrate to dotnet-format tool (#2016)

* migrate to new dotnet-format tool in build script (run on local build)
* reformat code

Octokit/Models/Request/NewPullRequest.cs

@@ -50,7 +50,7 @@ namespace Octokit
         /// Body of the pull request (optional)
         /// </summary>
         public string Body { get; set; }
-        
+
         /// <summary>
         /// Whether the pull request is in a draft state or not (optional)
         /// </summary>

Octokit/Models/Request/SearchRepositoriesRequest.cs

@@ -331,7 +331,7 @@ namespace Octokit
         /// Matches repositories with regards to both the <param name="from"/> and <param name="to"/> dates.
         /// </summary>
         [Obsolete("This ctor does not support the time component or timezone and will be removed in a future release. Please use the DateTimeOffset overload instead")]
-        public DateRange(DateTime from, DateTime to) 
+        public DateRange(DateTime from, DateTime to)
         {
             query = $"{from.ToString(DatePattern, CultureInfo.InvariantCulture)}..{to.ToString(DatePattern, CultureInfo.InvariantCulture)}";
         }