Bump kivy from 2.2.1 to 2.3.0

Bumps [kivy](https://github.com/kivy/kivy) from 2.2.1 to 2.3.0.
- [Release notes](https://github.com/kivy/kivy/releases)
- [Commits](kivy/kivy@2.2.1...2.3.0)

---
updated-dependencies:
- dependency-name: kivy
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -23,7 +23,7 @@ classifiers=[
     ]
 dependencies = [
     "mpf >= 0.57.0",  # ALSO CHANGE THIS IN _version.py
-    "kivy == 2.2.1",  # Sept 19, 2023  # ALSO CHECK for updates to kivy_deps packages below
+    "kivy == 2.3.0",  # Sept 19, 2023  # ALSO CHECK for updates to kivy_deps packages below
     "psutil == 5.9.8",  # Sept 19, 2023
     "Pygments == 2.16.1", # Sept 19, 2023  Only used for the interactive MC. Does anyone use that?
     "ffpyplayer == 4.5.1",  # Nov 3, 2023  4.5.1 needed for RPi.