Add webhookId to BucketIds

src/Discord.Net.Rest/DiscordRestApiClient.cs

@@ -524,7 +524,8 @@ namespace Discord.API
                 throw new ArgumentException(message: $"Message content is too long, length must be less or equal to {DiscordConfig.MaxMessageSize}.", paramName: nameof(args.Content));
             options = RequestOptions.CreateOrClone(options);
 
-            return await SendJsonAsync<Message>("POST", () => $"webhooks/{webhookId}/{AuthToken}?wait=true", args, new BucketIds(), clientBucket: ClientBucketType.SendEdit, options: options).ConfigureAwait(false);
+            var ids = new BucketIds(webhookId: webhookId);
+            return await SendJsonAsync<Message>("POST", () => $"webhooks/{webhookId}/{AuthToken}?wait=true", args, ids, clientBucket: ClientBucketType.SendEdit, options: options).ConfigureAwait(false);
         }
         /// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
         public async Task<Message> UploadFileAsync(ulong channelId, UploadFileParams args, RequestOptions options = null)
@@ -563,7 +564,8 @@ namespace Discord.API
                     throw new ArgumentOutOfRangeException($"Message content is too long, length must be less or equal to {DiscordConfig.MaxMessageSize}.", nameof(args.Content));
             }
 
-            return await SendMultipartAsync<Message>("POST", () => $"webhooks/{webhookId}/{AuthToken}?wait=true", args.ToDictionary(), new BucketIds(), clientBucket: ClientBucketType.SendEdit, options: options).ConfigureAwait(false);
+            var ids = new BucketIds(webhookId: webhookId);
+            return await SendMultipartAsync<Message>("POST", () => $"webhooks/{webhookId}/{AuthToken}?wait=true", args.ToDictionary(), ids, clientBucket: ClientBucketType.SendEdit, options: options).ConfigureAwait(false);
         }
         public async Task DeleteMessageAsync(ulong channelId, ulong messageId, RequestOptions options = null)
         {