Update python:3.12 Docker digest to 942374a

Signed-off-by: Mend Renovate <[email protected]>

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@sha256:9cccc140f1bf453c774a25afc92b997f1297704ae6905e2b0261aa403156d0ff as builder
+FROM python:3.12@sha256:942374a9ed2353df11065502733c29c7f655a2b6bd03e0e2a3dd2086fdb1044c as builder
 
 RUN pip install --no-cache-dir pipenv==2023.12.1
 ENV PIPENV_VENV_IN_PROJECT=1