👷 修复 pypi ci 文件错误

setup.py

@@ -1,15 +1,18 @@
 """ Packaging of PagerMaid. """
 
 from setuptools import setup, find_packages
+import datetime
 
 with open("README.md", "r") as fh:
     long_description = fh.read()
 with open("requirements.txt", "r") as fp:
     install_requires = fp.read()
 
+formatted_today = datetime.date.today().strftime('%y%m%d')
+
 setup(
     name="pagermaid_modify",
-    version="2020.8.post1",
+    version=formatted_today[0:2] + "." + formatted_today[2:4] + "." + formatted_today[4:6] + ".post1",
     author="xtaodada",
     author_email="xtao@xtaolink.cn",
     description="A telegram utility daemon and plugin framework.",