Merge pull request #198 from renovate-bot/renovate/python-3.12

Update python:3.12 Docker digest to b40b4e5

Dockerfile

@@ -1,6 +1,6 @@
 # This Dockerfile is based on the pattern recommended by the pipenv docs:
 # https://pipenv.pypa.io/en/latest/docker.html
-FROM python:3.12@sha256:389f624f2a08a3f26a6bc12e2ff92277388a55410bf367b25cfb7050b01245c1 as builder
+FROM python:3.12@sha256:b40b4e5c86136e5400e9347459a9366315ff129e07175fdde8e221147ec5d541 as builder
 
 RUN pip install --no-cache-dir pipenv==2023.12.1
 ENV PIPENV_VENV_IN_PROJECT=1