Merge pull request #18 from kmaehashi/drop-py38-main

Python 3.8 dropped in main

Author: kmaehashi

.github/workflows/test.yml

@@ -26,6 +26,8 @@ jobs:
           flake8: 'flake8==7.*'
         - python: '3.7'
           flake8: 'flake8==6.*'
+        - python: '3.8'
+          flake8: 'git+https://github.com/pycqa/flake8.git@main'
         - python: '3.12'
           flake8: 'flake8==4.*'
         - python: '3.13'