Core/Misc: Change all unix time columns in character database to bigint (signed)

Port From (https://github.com/TrinityCore/TrinityCore/commit/d29dd1eeb5c52dc76bd741fe1ee0e875c416b8e7)

Source/Game/Networking/Packets/CharacterPackets.cs

@@ -143,7 +143,7 @@ namespace Game.Networking.Packets
 
                 StringArguments equipment = new(fields.Read<string>(17));
                 ListPosition = fields.Read<byte>(19);
-                LastPlayedTime = fields.Read<uint>(20);
+                LastPlayedTime = fields.Read<long>(20);
 
                 var spec = Global.DB2Mgr.GetChrSpecializationByIndex(ClassId, fields.Read<byte>(21));
                 if (spec != null)
@@ -188,7 +188,7 @@ namespace Game.Networking.Packets
                 foreach (var visualItem in VisualItems)
                     visualItem.Write(data);
 
-                data.WriteUInt32(LastPlayedTime);
+                data.WriteUInt32((uint)LastPlayedTime);
                 data.WriteUInt16(SpecID);
                 data.WriteUInt32(Unknown703);
                 data.WriteUInt32(LastLoginVersion);
@@ -242,7 +242,7 @@ namespace Game.Networking.Packets
             public uint Flags4;
             public bool FirstLogin;
             public byte unkWod61x;
-            public uint LastPlayedTime;
+            public long LastPlayedTime;
             public ushort SpecID;
             public uint Unknown703;
             public uint LastLoginVersion;

Source/Game/Networking/Packets/TicketPackets.cs

@@ -224,9 +224,9 @@ namespace Game.Networking.Packets
                 Text = data.ReadString(data.ReadBits<uint>(12));
             }
 
-            public SupportTicketChatLine(uint timestamp, string text)
+            public SupportTicketChatLine(long timestamp, string text)
             {
-                Timestamp = timestamp;
+                Timestamp = (uint)timestamp;
                 Text = text;
             }