Update python Docker tag to v3.13

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:a3cb1bd69b3a6a402e59c0ae1ba330b949a0fa512bf64a6688eebe29b2ec487e as builder
+FROM python:3.13@sha256:7cbaafdb2751702bbca474e69bd518c5504c4f34d6cd1c9e6f2e8d3072a582df as builder
 
 RUN pip install --no-cache-dir pipenv==2023.12.1
 ENV PIPENV_VENV_IN_PROJECT=1
@@ -11,7 +11,7 @@ RUN pipenv --no-site-packages install -v --deploy
 
 
 ############################################################
-FROM python:3.12-slim@sha256:2a6386ad2db20e7f55073f69a98d6da2cf9f168e05e7487d2670baeb9b7601c5 as final
+FROM python:3.13-slim@sha256:4efa69bf17cfbd83a9942e60e2642335c3b397448e00410063a0421f9727c4c4 as final
 
 RUN adduser --uid 19876 summarizer-bot && \
     mkdir /app && \