Update supported versions of Python and tests

.github/workflows/tests.yml

@@ -8,12 +8,17 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.7', '3.8', '3.9', '3.10', 'pypy-3.8']
+        python-version: ['3.12']
+        include:
+          - os: ubuntu-latest
+            python-version: '3.7'
+          - os: ubuntu-latest
+            python-version: 'pypy-3.8'
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           submodules: true
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       - name: Upgrade pip and setuptools

README.rst

@@ -7,7 +7,7 @@ CSS but doesn't know specific rules, properties or values supported in various
 CSS modules.
 
 * Free software: BSD license
-* For Python 3.7+, tested on CPython and PyPy
+* For Python 3.8+, tested on CPython and PyPy
 * Documentation: https://doc.courtbouillon.org/tinycss2
 * Changelog: https://github.com/Kozea/tinycss2/releases
 * Code, issues, tests: https://github.com/Kozea/tinycss2

pyproject.toml

@@ -8,7 +8,7 @@ description = 'A tiny CSS parser'
 keywords = ['css', 'parser']
 authors = [{name = 'Simon Sapin', email = '[email protected]'}]
 maintainers = [{name = 'CourtBouillon', email = '[email protected]'}]
-requires-python = '>=3.7'
+requires-python = '>=3.8'
 readme = {file = 'README.rst', content-type = 'text/x-rst'}
 license = {file = 'LICENSE'}
 dependencies = ['webencodings >=0.4']
@@ -20,10 +20,10 @@ classifiers = [
   'Programming Language :: Python',
   'Programming Language :: Python :: 3',
   'Programming Language :: Python :: 3 :: Only',
-  '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 :: Implementation :: CPython',
   'Programming Language :: Python :: Implementation :: PyPy',
   'Topic :: Text Processing',
@@ -59,4 +59,4 @@ omit = ['.*']
 [tool.isort]
 default_section = 'FIRSTPARTY'
 multi_line_output = 4
-extend_skip = ['tests/css-parsing-tests']
+extend_skip = ['tests/css-parsing-tests']