build: require Python 3.13

Home Assistant has required Python 3.13 since 2025.2, and CI already runs on
3.13. requires-python, ruff's target-version and mypy's python_version now say
so, and uv.lock drops the resolution fork it kept for Python < 3.13.
164 tests pass and pre-commit (ruff, black) is clean on the new target.

pyproject.toml

@@ -8,7 +8,7 @@ version = "1.30.1"
 description = "Automatically adjust brightness and color of lights based on the sun position"
 readme = "README.md"
 license = "Apache-2.0"
-requires-python = ">=3.12"
+requires-python = ">=3.13"
 
 [dependency-groups]
 dev = [
@@ -26,7 +26,7 @@ test = [
 packages = ["custom_components/adaptive_lighting"]
 
 [tool.ruff]
-target-version = "py312"
+target-version = "py313"
 line-length = 88
 
 [tool.ruff.lint]
@@ -49,7 +49,7 @@ ignore = [
 known-first-party = ["adaptive_lighting"]
 
 [tool.mypy]
-python_version = "3.12"
+python_version = "3.13"
 warn_return_any = true
 warn_unused_configs = true
 ignore_missing_imports = true