[zh-cn]sync translate-stream-close-websocket-requests

Signed-off-by: xin.li <[email protected]>

Author: my-git9

content/zh-cn/docs/reference/command-line-tools-reference/feature-gates/translate-stream-close-websocket-requests.md

@@ -6,6 +6,11 @@ _build:
   render: false
 
 stages:
+  - stage: alpha
+    defaultValue: false
+    fromVersion: "1.29"
+    toVersion: "1.29"
+
   - stage: beta
     defaultValue: true
     fromVersion: "1.30"