Update slack-api-client/src/main/java/com/slack/api/methods/ChatStreamHelper.java

Co-authored-by: Eden Zimbelman <eden.zimbelman@salesforce.com>

Author: srtaalej

slack-api-client/src/main/java/com/slack/api/methods/ChatStreamHelper.java

@@ -68,7 +68,7 @@ public enum State {
      * Default is 100.
      */
     @Builder.Default
-    private final int bufferSize = 100;
+    private final int bufferSize = 256;
 
     // Mutable state (not thread-safe)
     @Builder.Default