fix: bump maximum event stream message length to 24MB (#1243)

Author: lauzadis

.changes/ba71e47f-d546-45f2-bf44-aedaab74a966.json

@@ -0,0 +1,5 @@
+{
+    "id": "ba71e47f-d546-45f2-bf44-aedaab74a966",
+    "type": "misc",
+    "description": "Increase maximum event stream message length to 24MB"
+}

runtime/protocol/aws-event-stream/common/src/aws/smithy/kotlin/runtime/awsprotocol/eventstream/Message.kt

@@ -12,15 +12,15 @@ import aws.smithy.kotlin.runtime.text.encoding.encodeToHex
 
 internal const val MESSAGE_CRC_BYTE_LEN = 4
 
-// max message size is 16 MB
-internal const val MAX_MESSAGE_SIZE = 16 * 1024 * 1024
+// max message size is 24 MB
+internal const val MAX_MESSAGE_SIZE = 24 * 1024 * 1024
 
 // max header size is 128 KB
 internal const val MAX_HEADER_SIZE = 128 * 1024
 
 /*
     Message Wire Format
-    See also: https://docs.aws.amazon.com/transcribe/latest/dg/event-stream-med.html
+    See also: https://docs.aws.amazon.com/transcribe/latest/dg/streaming-setting-up.html
 
     +--------------------------------------------------------------------+   --
     |                            Total Len (32)                          |     |