feat: Upgrade to Python 3.12 (#4675)

Co-authored-by: Hayden <64056131+hay-kot@users.noreply.github.com>

.devcontainer/Dockerfile

@@ -1,8 +1,8 @@
 # See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.224.2/containers/python-3/.devcontainer/base.Dockerfile
 
 # [Choice] Python version (use -bullseye variants on local arm64/Apple Silicon): 3, 3.10, 3.9, 3.8, 3.7, 3.6, 3-bullseye, 3.10-bullseye, 3.9-bullseye, 3.8-bullseye, 3.7-bullseye, 3.6-bullseye, 3-buster, 3.10-buster, 3.9-buster, 3.8-buster, 3.7-buster, 3.6-buster
-ARG VARIANT="3.10-bullseye"
-FROM mcr.microsoft.com/vscode/devcontainers/python:0-${VARIANT}
+ARG VARIANT="3.12-bullseye"
+FROM mcr.microsoft.com/devcontainers/python:${VARIANT}
 
 # [Choice] Node.js version: none, lts/*, 16, 14, 12, 10
 ARG NODE_VERSION="none"

.devcontainer/devcontainer.json

@@ -9,7 +9,7 @@
       // Update 'VARIANT' to pick a Python version: 3, 3.10, 3.9, 3.8, 3.7, 3.6
       // Append -bullseye or -buster to pin to an OS version.
       // Use -bullseye variants on local on arm64/Apple Silicon.
-      "VARIANT": "3.10-bullseye",
+      "VARIANT": "3.12-bullseye",
       // Options
       "NODE_VERSION": "16"
     }