Update type of seeds to be unsigned long instead of long

src/MySqlCdc/Events/RandEvent.cs

@@ -7,16 +7,15 @@ namespace MySqlCdc.Events;
     /// <remarks>
     /// Creates a new <see cref="RandEvent"/>.
     /// </remarks>
-    public record RandEvent(long Seed1, long Seed2) : IBinlogEvent
+    public record RandEvent(ulong Seed1, ulong Seed2) : IBinlogEvent
     {
         /// <summary>
         /// Gets the rand_seed1
         /// </summary>
-        public long Seed1 {get; } = Seed1;
+        public ulong Seed1 {get; } = Seed1;
 
         /// <summary>
         /// Gets the rand_seed2
         /// </summary>
-        public long Seed2 {get; } = Seed2;
-
+        public ulong Seed2 { get; } = Seed2;
     }

src/MySqlCdc/Parsers/RandEventParser.cs

@@ -15,8 +15,8 @@ public class RandEventParser : IEventParser
         /// </summary>
         public IBinlogEvent ParseEvent(EventHeader header, ref PacketReader reader) 
         {
-            var seed1 = reader.ReadInt64LittleEndian();
-            var seed2 = reader.ReadInt64LittleEndian();
+            var seed1 = reader.ReadUInt64LittleEndian();
+            var seed2 = reader.ReadUInt64LittleEndian();
 
             return new RandEvent(seed1, seed2);
         }

src/MySqlCdc/Protocol/PacketReader.cs

@@ -66,6 +66,16 @@ public UInt32 ReadUInt32BigEndian()
         return result;
     }
 
+    /// <summary>
+    /// Reads 64-bit long written in little-endian format.
+    /// </summary>
+    public UInt64 ReadUInt64LittleEndian()
+    {
+        UInt64 result = BinaryPrimitives.ReadUInt64LittleEndian(_span.Slice(_offset));
+        _offset += 8;
+        return result;
+    }
+
     /// <summary>
     /// Reads 64-bit long written in little-endian format.
     /// </summary>

tests/MySqlCdc.Tests/Parsers/RandEventParserTests.cs

@@ -23,7 +23,7 @@ public void Test_RandEvent_ReturnsEvent()
         var parser = new RandEventParser();
         var @event = (RandEvent)parser.ParseEvent(eventHeader, ref reader);
         ;
-        Assert.Equal(763747084, @event.Seed1);
-        Assert.Equal(79468295, @event.Seed2);
+        Assert.Equal(763747084UL, @event.Seed1);
+        Assert.Equal(79468295UL, @event.Seed2);
     }
 }