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@sha256:752ce4a954589eb94d32849db7ede17ce120945cb71f6feabab3697550932ff9 as builder
+FROM python:3.13@sha256:9255d1993f6d28b8a1cd611b108adbdfa38cb7ccc46ddde8ea7d734b6c845e32 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@sha256:37db2b161a1de4e49afcccbf783a68729fe2574e3d0a5807e731acf91bab1208 as final
+FROM python:3.13-slim@sha256:c26605c6d019f8638f18399784dedfd9fb511d057308f4db84062b901f0fb43f as final
 
 RUN adduser --uid 19876 summarizer-bot && \
     mkdir /app && \