优化 Dockerfile 构建流程，更新依赖并增加 Python 3.8 要求

setup.py

@@ -0,0 +1,11 @@
+from setuptools import setup, find_packages
+
+setup(
+    name='your_package_name',
+    version='0.1',
+    packages=find_packages(),
+    install_requires=[
+        # List your package dependencies here
+    ],
+    python_requires='==3.8.*',
+)