Use source generator for device report JSON serializing.

Aaru.Core/Remote.cs

@@ -68,11 +68,7 @@ public static class Remote
 
                 try
                 {
-                    string json = JsonSerializer.Serialize(report, new JsonSerializerOptions()
+                    string json = JsonSerializer.Serialize(report, typeof(DeviceReport), DeviceReportContext.Default);
-                    {
-                        DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
-                        WriteIndented          = true
-                    });
 
                     var httpClient = new HttpClient();
 

Aaru/Commands/Device/DeviceReport.cs

@@ -1576,11 +1576,7 @@ sealed class DeviceReportCommand : Command
 
         var jsonFs = new FileStream(jsonFile, FileMode.Create);
 
-        JsonSerializer.Serialize(jsonFs, report, new JsonSerializerOptions()
+        JsonSerializer.Serialize(jsonFs, report, typeof(DeviceReport), DeviceReportContext.Default);
-        {
-            WriteIndented          = true,
-            DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
-        });
 
         jsonFs.Close();