Fix CA1051 warnings in EncodingJobInfo.cs

Convert public fields to auto-properties and fix member ordering

Co-authored-by: Derpipose <90276123+Derpipose@users.noreply.github.com>

MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs

@@ -23,9 +23,6 @@ namespace MediaBrowser.Controller.MediaEncoding
     {
         private static readonly char[] _separators = ['|', ','];
 
-        public int? OutputAudioBitrate;
-        public int? OutputAudioChannels;
-
         private TranscodeReason? _transcodeReasons = null;
 
         public EncodingJobInfo(TranscodingJobType jobType)
@@ -37,6 +34,10 @@ namespace MediaBrowser.Controller.MediaEncoding
             SupportedSubtitleCodecs = Array.Empty<string>();
         }
 
+        public int? OutputAudioBitrate { get; set; }
+
+        public int? OutputAudioChannels { get; set; }
+
         public TranscodeReason TranscodeReasons
         {
             get