Docker new licensing

[Wolftallemo]

@sarahann

It’s also important to note that the licensing and distribution terms for Docker and Moby open source projects, such as Docker Engine, are not changing.

Discourse uses Docker Engine in production, which is not affected by the aforementioned licensing update. The only applicable scenario I can see would be if one were to run Discourse in development mode using the Docker guide (and only if they were using Docker Desktop, e.g MacOS or Windows with the Docker Desktop WSL integration enabled).