Fix deprecations during docker compose build (#6706)

.devcontainer/Dockerfile

@@ -1,5 +1,5 @@
 # This should be kept in sync with the python version used in docker/Dockerfile
-FROM --platform=linux/amd64 mcr.microsoft.com/devcontainers/python:3.11-bullseye@sha256:105bf6a63ab025206f019a371a735fec6553db0be520030c7a2fd0e002947232
+FROM --platform=linux/amd64 mcr.microsoft.com/devcontainers/python:3.11-bullseye@sha256:105bf6a63ab025206f019a371a735fec6553db0be520030c7a2fd0e002947232 AS devcontainer_amd64
 
 ARG userid=10001
 ARG groupid=10001

docker-compose.yml

@@ -1,5 +1,4 @@
 ---
-version: "2"
 services:
   # Socorro app image
   app:

docker/Dockerfile

@@ -5,7 +5,7 @@
 # https://hub.docker.com/_/python
 # NOTE(willkg): stick with slim-bullseye which matches how we build the
 # stackwalker
-FROM --platform=linux/amd64 python:3.11.9-slim-bullseye@sha256:8850f5e6e8da9081a6d156252a11161aa22f04d6ed1723c57ca2d5a5d48132bc
+FROM --platform=linux/amd64 python:3.11.9-slim-bullseye@sha256:8850f5e6e8da9081a6d156252a11161aa22f04d6ed1723c57ca2d5a5d48132bc AS app_amd64
 
 # Set up user and group
 ARG groupid=10001