Set style env to Python 3.14

This change avoids the following warning from black:

Python 3.12 cannot parse code formatted for Python 3.14. To fix this:
run Black with Python 3.14, set --target-version to py312, or use
--fast to skip the safety check. Black's safety check verifies
equivalence by parsing the AST, which fails when the running Python is
older than the target version.

Author: boltronics

{{cookiecutter.package_name}}/pyproject.toml

@@ -131,6 +131,7 @@ extra-dependencies = [
 check = "pylint src tests examples"
 
 [tool.hatch.envs.style]
+python = "3.14"
 detached = true
 extra-dependencies = [
   "black",