docs: Fix docs generation (#4450)

Keep documents for latest 3 tags.

Author: zhanglei1949

docs/sphinx_ext.py

@@ -28,8 +28,8 @@
 
 from furo.navigation import get_navigation_tree
 
-
-def resolve_git_tags(maximum_recent_versions=4):
+# set maximum_recent_versions to 3 to avoid creating too many files, which may cause failure when uploading to cloudflare
+def resolve_git_tags(maximum_recent_versions=3): 
     git = shutil.which("git")
     if git is None:
         return "latest", []