Update Dockerfile

update python 3.12

Author: kaiz-io

typescript/aws-codepipeline-ecs-lambda/src/Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM python:3.8-slim-buster
+FROM python:3.12-slim-buster
 
 WORKDIR /flask-app
 
@@ -9,4 +9,4 @@ RUN pip3 install -r requirements.txt
 
 COPY flask-app/ .
 
-CMD [ "python3", "app.py"]
+CMD [ "python3", "app.py"]