fix: update Dockerfile

Author: SpicyGarlicAlbacoreRoll

Dockerfile

@@ -2,6 +2,8 @@ FROM public.ecr.aws/docker/library/python:3.12
 COPY --from=public.ecr.aws/awsguru/aws-lambda-adapter:0.8.3 /lambda-adapter /opt/extensions/lambda-adapter
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /bin/uv
 
+ARG MATURITY="local"
+ENV MATURITY=${MATURITY}
 ARG HOST=0.0.0.0
 ENV HOST=${HOST}
 ARG PORT=8080