ci(github-actions): add python 3.14 to github-actions and tox

Author: Lee-W

.github/workflows/pythonpackage.yml

@@ -6,7 +6,7 @@ jobs:
   python-check:
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
         platform: [ubuntu-22.04, macos-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
     steps:

pyproject.toml

@@ -174,7 +174,7 @@ testpaths = ["tests/"]
 
 [tool.tox]
 requires = ["tox>=4.22"]
-env_list = ["3.9", "3.10", "3.11", "3.12", "3.13"]
+env_list = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
 
 [tool.tox.env_run_base]
 description = "Run tests suite against Python {base_python}"