fix: netty v3 request recording may be incomplete due to lack of handling of httpChunk

Author: shichanglin5

arex-instrumentation/netty/arex-netty-v3/src/main/java/io/arex/inst/netty/v3/server/RequestTracingHandler.java

@@ -47,6 +47,11 @@ public void messageReceived(ChannelHandlerContext ctx, MessageEvent event) throw
                     // cache mocker for writeComplete and writeRequested, not use ctx.setAttachment(mocker), because it maybe used by user handler
                     ContextManager.currentContext().setAttachment("arex-netty-server-mocker", mocker);
                 }
+            } else if (event.getMessage() instanceof HttpChunk) {
+                Mocker mocker = (Mocker) ContextManager.currentContext().getAttachment("arex-netty-server-mocker");
+                if (mocker != null) {
+                    setContent(((HttpChunk) event.getMessage()).getContent(), mocker);
+                }
             }
         } catch (Throwable e) {
             LogManager.warn("netty messageReceived error", e);