build(deps): bump library/python in /docker/unstable

Bumps library/python from 3.12.0-slim to 3.12.2-slim.

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

Signed-off-by: dependabot[bot] <support@github.com>

docker/unstable/Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/library/python:3.12.0-slim@sha256:32477c7ecb3b18a47cff8eb5b8149bc21c858998b0ae2bb36f4ddb43cc79d240
+FROM docker.io/library/python:3.12.2-slim@sha256:eb53cb99a609b86da6e239b16e1f2aed5e10cfbc538671fc4631093a00f133f2
 
 # This file is generated from docker:unstable in Taskfile.yml
 COPY var/requirements.txt /var/tmp/build/