Bump python in /compose/local/django

Bumps python from 3.12.2-slim-bookworm to 3.12.3-slim-bookworm.

---
updated-dependencies:
- dependency-name: python
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

compose/local/django/Dockerfile

@@ -1,5 +1,5 @@
 # define an alias for the specific python version used in this file.
-FROM docker.io/python:3.12.2-slim-bookworm as python
+FROM docker.io/python:3.12.3-slim-bookworm as python
 
 # Python build stage
 FROM python as python-build-stage