Update GH Actions config and remove Python 3.6

Pytest no longer supports Python 3.6 so it's getting very difficult to maintain tests
for that version. Python 3.6 went EOL about 12 months ago so there isn't much value in
continuing to support it.

.github/workflows/python-package.yml

@@ -13,15 +13,17 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
-        run: pip install --upgrade pytest .[test]
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade pytest .[test]
       - name: Test with pytest
         run: pytest -v

README.md

@@ -3,7 +3,7 @@
 [![Build Status](https://github.com/irgeek/StrEnum/workflows/Python%20package/badge.svg)](https://github.com/irgeek/StrEnum/actions)
 
 StrEnum is a Python `enum.Enum` that inherits from `str` to complement
-`enum.IntEnum` in the standard library. Supports python 3.6+.
+`enum.IntEnum` in the standard library. Supports python 3.7+.
 
 ## Installation
 

setup.py

@@ -35,10 +35,12 @@
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
     ],