Bump python from 3.12.5-slim-bullseye to 3.12.6-slim-bullseye

Bumps python from 3.12.5-slim-bullseye to 3.12.6-slim-bullseye.

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

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

Dockerfile

@@ -1,5 +1,5 @@
 # REF: https://hub.docker.com/_/python
-FROM python:3.12.5-slim-bullseye
+FROM python:3.12.6-slim-bullseye
 
 LABEL "com.github.actions.name"="Spellcheck Action"
 LABEL "com.github.actions.description"="Check spelling of files in repository"