Windows: .env file problem with cp-all-in-one and cp-all-in-one-community

Hi,

I tried to follow the `cp-all-in-one` and `cp-all-in-one-community` installation guides here:
- https://docs.confluent.io/current/quickstart/ce-docker-quickstart.html
- https://docs.confluent.io/current/quickstart/cos-docker-quickstart.html

I used the suggested `5.4.1-post` branch.
But after I run the `docker-compose up -d --build` command I got the following error message:


Probably the reason is that in the `.env` file there is a relative reference for `../utils/config.env` and this command cannot parse it.
If I replaced `.env` file content with the content of `../utils/config.env` it worked.

I run it on Windows 10 and in PowerShell.