build: bump minimum python version to 3.9

Author: thegamecracks

README.md

@@ -52,7 +52,7 @@ from opengsq.protocols import (
 
 ## Requirements
 
-- Python 3.7 or higher
+- Python 3.9 or higher
 
 ## Installation
 

docs/install.rst

@@ -4,7 +4,7 @@ Installation
 Requirements
 ------------
 
-- Python 3.7 or higher
+- Python 3.9 or higher
 
 You can install the OpenGSQ library using pip:
 

setup.py

@@ -27,7 +27,7 @@
     install_requires=install_requires,
     entry_points={'console_scripts': ['opengsq=opengsq.cli:main']},
     packages=find_packages(exclude=['tests', 'tests.*']),
-    python_requires='>=3.7',
+    python_requires='>=3.9',
     url='https://github.com/opengsq/opengsq-python',
     project_urls={
         'Bug Tracker': 'https://github.com/opengsq/opengsq-python/issues',