Add ruff static analysis and a Gitea Actions release workflow

Adds ruff (lint + format check) as a dev dependency and gate, applies its
fixes across the codebase (modernized typing, safer zip usage, line
length), and adds a Gitea Actions workflow that lints, tests, builds, and
publishes to the Gitea PyPI registry on v*.*.* tag pushes.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

tests/test_animation.py

@@ -13,8 +13,8 @@ from openrgb_hue.animation import (
     build_animation,
     run_animation,
 )
-from openrgb_hue.gradient import Gradient
 from openrgb_hue.color import Color
+from openrgb_hue.gradient import Gradient
 from openrgb_hue.mapping import SequenceMapping, base_positions
 from openrgb_hue.targets import synthetic_targets