chore: sync README API list

Author: github-actions[bot]

README.en.md

@@ -153,6 +153,7 @@ The API list below is generated from OpenAPI and shows the current public API ca
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README.md

@@ -155,6 +155,7 @@ except BusinessError as exc:
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+- [笔记搜索 (V4)](https://docs.justoneapi.com/zh/api/xiaohongshu-rednote/note-search-v4?utm_source=github.com&utm_medium=referral&utm_campaign=justoneapi_justoneapi_python&utm_content=repo_readme_api_list)
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