[fix][doc] python api release link

docs/docs/en/contribute/release/release-post.md

@@ -22,7 +22,7 @@ We could reuse the main command the CI run and publish our Docker images to Dock
 
 ## Publish pydolphinscheduler to PyPI
 
-Python API need to release to PyPI for easier download and use, you can see more detail in [Python API release](https://github.com/apache/dolphinscheduler/blob/dev/dolphinscheduler-python/pydolphinscheduler/RELEASE.md#to-pypi)
+Python API need to release to PyPI for easier download and use, you can see more detail in [Python API release](https://github.com/apache/dolphinscheduler/blob/3.1.0/dolphinscheduler-python/pydolphinscheduler/RELEASE.md#to-pypi)
 to finish PyPI release.
 
 ## Get All Contributors

docs/docs/zh/contribute/release/release-post.md

@@ -21,7 +21,7 @@
 
 ## 发布 pydolphinscheduler 到 PyPI
 
-需要将 Python API 发布到 PyPI，请参考 [Python API release](https://github.com/apache/dolphinscheduler/blob/dev/dolphinscheduler-python/pydolphinscheduler/RELEASE.md#to-pypi)
+需要将 Python API 发布到 PyPI，请参考 [Python API release](https://github.com/apache/dolphinscheduler/blob/3.1.0/dolphinscheduler-python/pydolphinscheduler/RELEASE.md#to-pypi)
 完成 PyPI 的发版
 
 ## 获取全部的贡献者