⬆️ Increase minimum Python version to 3.9

- Updated the minimum required Python version to 3.9 to resolve the 'type' object is not subscriptable error in tests.
- Ensured compatibility with Python features introduced in 3.9.

.github/workflows/run-tests.yml

@@ -9,7 +9,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest]
-        python-version: ['3.8', '3.9', '3.10', '3.11']  # Wrapped versions in quotes
+        python-version: ['3.9', '3.10', '3.11']  # Wrapped versions in quotes
 
     name: Python ${{ matrix.python-version }} - ${{ matrix.os }}
 

pyproject.toml

@@ -16,7 +16,6 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
@@ -32,7 +31,7 @@ keywords = [
     "python-middleware",
 ]
 dependencies = []
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 
 [project.optional-dependencies]
 build = ["build", "twine"]