ci: update GitHub Actions and tox configuration for Python 3.14

- Updated the Python version matrix in GitHub Actions to include Python 3.14.
- Changed the runner environment to Ubuntu 24.04.
- Updated actions/checkout and actions/setup-python to their latest versions.
- Modified tox.ini to reflect the updated environment list.

Author: ekalinin

.github/workflows/main.yml

@@ -10,24 +10,22 @@ on:
 jobs:
   tests:
     name: Python ${{ matrix.python-version }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       fail-fast: false
       matrix:
         python-version:
-        - '3.7'
-        - '3.8'
-        - '3.9'
         - '3.10'
         - '3.11'
         - '3.12'
         - '3.13'
+        - '3.14'
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
-    - uses: actions/setup-python@v5
+    - uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
         allow-prereleases: true
@@ -52,20 +50,20 @@ jobs:
 
   coverage:
     name: Coverage
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     needs: tests
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
-          python-version: '3.10'
+          python-version: '3.14'
 
       - name: Install dependencies
         run: python -m pip install --upgrade coverage[toml]
 
       - name: Download data
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v5
         with:
           name: coverage-data
 

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 # These should match the GitHub Actions env list
-envlist = py37,py38,py39,py310,py311,py312,py313,py314
+envlist = py310,py311,py312,py313,py314
 
 [testenv]
 install_command = pip install {opts} {packages}