Can't start dev container: multi-python is deprecated

[cvansteenburg]

Bug

Dev container fails to start. Container dependency in .devcontainer/Dockerfile called multi-python is deprecated. Failure during container start gives "failed to find package fkrull/docker-multi-python" as the cause. A visit to the repo shows it's been deprecated and removed.

Current Behavior

In VS Code:

1. Download extension Dev Containers (as suggested in Contributing docs)
2. Cmd + Shift + P
3. Choose "Dev Containers: Clone Repository in Container Volume..."
4. Container start fails

Expected behavior

Odmantic codebase starts in Docker container

Environment

• ODMantic version: ... 0.9.2
• MongoDB version: ... latest (probably 7.0)
• Pydantic infos (output of python -c "import pydantic.utils; print(pydantic.utils.version_info())):
  Cannot run in container.