NaGaii1994

fix(#259): docker-compose error on building sample project.

1

- Change base image from alpine to slim-bullseye because using alpine can make python docker slower. - Update postgres image from 9.6 to 14. - Fix bug that django container...

### Environment * os: ubuntu 20.04LTS * docker version: Docker version 20.10.12, build 20.10.12-0ubuntu2~20.04.1 ### Describe the bug Hello, thanks for this useful software ! I have erorr on building...

# Pull request checklist - [x] The PR has a proper title. Use [Semantic Commit Messages](https://seesparkbox.com/foundry/semantic_commit_messages). (No more branch-name title please) - [x] Make sure this is ready to be...