Update python Docker tag to v3.14

Dockerfile

@@ -1,12 +1,12 @@
 # syntax=docker.io/docker/dockerfile:1
 
-FROM python:3.11-alpine AS pipdependencies
+FROM python:3.14-alpine AS pipdependencies
 
 COPY app/requirements.txt /requirements.txt
 
 RUN pip3 install --no-cache-dir --user --requirement requirements.txt
 
-FROM python:3.11-alpine
+FROM python:3.14-alpine
 LABEL maintainer="Cabillot Julien <dockerimages@cabillot.eu>"
 
 # TODO: à tester