Update 3.7 to EOL

Author: Dumeng

.github/workflows/python-37.yml

@@ -1,11 +1,6 @@
 name: python-37
 
-on:
-  push:
-    branches:
-      - master
-  schedule:
-    - cron: "0 * * * *"
+on: workflow_dispatch
 
 jobs:
   sync:

README.rst

@@ -37,7 +37,7 @@ Maintained versions:
           :target: https://github.com/python/python-docs-zh-cn/actions?workflow=python-38
      - .. image:: https://img.shields.io/badge/dynamic/json.svg?label=zh_CN&query=%24.zh_CN&url=http://gce.zhsj.me/python/38
           :target: https://app.transifex.com/python-doc/python-38/
-   * - `3.7 <https://github.com/python/python-docs-zh-cn/tree/3.7>`_
+   * - `3.7 <https://github.com/python/python-docs-zh-cn/tree/3.7>`_ [EOL]
      - .. image:: https://github.com/python/python-docs-zh-cn/workflows/python-37/badge.svg
           :target: https://github.com/python/python-docs-zh-cn/actions?workflow=python-37
      - .. image:: https://img.shields.io/badge/dynamic/json.svg?label=zh_CN&query=%24.zh_CN&url=http://gce.zhsj.me/python/37