Merge branch 'CoCo_Code_Op9-stable-v2-patch-85994' into 'stable-v2'

Update index.json

See merge request codechina/programmer/programer_magazine_list!33

index.json

@@ -4,7 +4,7 @@
             "id": "103",
             "title": "2023中国开发者调查报告",
             "path": "new-programmer/2023ddc",
-            "ref": "master",
+            "ref": "papes",
             "detail": "detail.json",
             "chapters": "chapters.json",
             "index_image": "https://img-home.csdnimg.cn/images/20230725081624.png",