chore: remove support for eol'ed python

Remove python 3.7 and 3.8 from support.
They are EOL'ed on 2023-06-27 and 2024-10-07 respectively.

Author: RobinNil

.github/workflows/test.yaml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-22.04 # 22.04 has python 3.7, see https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

setup.py

@@ -39,8 +39,6 @@
         'Intended Audience :: Developers',
         'Natural Language :: English',
         'Programming Language :: Python :: 3',
-        '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',

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py37, py38, py39, py310, py311, py312, py313, flake8
+envlist = py39, py310, py311, py312, py313, flake8
 
 [testenv:flake8]
 basepython=python