📦 Python: support 3.14; drop 3.9

Python 3.9 is EOL, see

https://devguide.python.org/versions/

Author: mbercx

template/.github/workflows/.ci.yml

@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.9', '3.13']
+        python-version: ['3.10', '3.14']
 
     steps:
       - uses: actions/checkout@v4

template/pyproject.toml.jinja

@@ -7,18 +7,18 @@ name = "{{package_name}}"
 dynamic = ["version"]
 description = ''
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 license = {file = "LICENSE"}
 keywords = []
 authors = []
 classifiers = [
   "Development Status :: 4 - Beta",
   "Programming Language :: Python",
-  "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
 ]
 
 [project.optional-dependencies]
@@ -73,7 +73,7 @@ parallel = false
 run = "pytest {args}"
 
 [[tool.hatch.envs.hatch-test.matrix]]
-python = ["3.9", "3.10", "3.11", "3.12", "3.13"]
+python = ["3.10", "3.11", "3.12", "3.13", "3.14"]
 
 [tool.ruff]
 lint.ignore = [