bring back py39 (#51)

Author: hampsterx

.github/workflows/publish.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
 
     services:
       kinesis:

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
 
     services:
       kinesis:

README.md

@@ -1,6 +1,6 @@
 # async-kinesis
 
-[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/python/black) [![PyPI version](https://badge.fury.io/py/async-kinesis.svg)](https://badge.fury.io/py/async-kinesis) [![Python 3.10](https://img.shields.io/badge/python-3.10-blue.svg)](https://www.python.org/downloads/release/python-3100/) [![Python 3.11](https://img.shields.io/badge/python-3.11-blue.svg)](https://www.python.org/downloads/release/python-3110/) [![Python 3.12](https://img.shields.io/badge/python-3.12-blue.svg)](https://www.python.org/downloads/release/python-3120/)
+[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/python/black) [![PyPI version](https://badge.fury.io/py/async-kinesis.svg)](https://badge.fury.io/py/async-kinesis) [![Python 3.9](https://img.shields.io/badge/python-3.9-blue.svg)](https://www.python.org/downloads/release/python-390/) [![Python 3.10](https://img.shields.io/badge/python-3.10-blue.svg)](https://www.python.org/downloads/release/python-3100/) [![Python 3.11](https://img.shields.io/badge/python-3.11-blue.svg)](https://www.python.org/downloads/release/python-3110/) [![Python 3.12](https://img.shields.io/badge/python-3.12-blue.svg)](https://www.python.org/downloads/release/python-3120/)
 
 High-performance async Python library for AWS Kinesis with production-ready resharding support.
 

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.black]
 line-length = 120
-target-version = ['py310', 'py311', 'py312']
+target-version = ['py39', 'py310', 'py311', 'py312']
 include = '\.pyi?$'
 extend-exclude = '''
 /(

setup.py

@@ -17,13 +17,14 @@
         "Development Status :: 4 - Beta",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: Apache Software License",
     ],
-    python_requires=">=3.10",
+    python_requires=">=3.9",
     packages=["kinesis"],
     install_requires=[
         "aiobotocore>=1.3.3",