feat: add option for exposing multiple ports

[alvaromateo]

Done

Add support for exposing multiple ports on the same container.

QA

• Run poetry install --no-interaction
• Run DOTRUN_PATH="$(pwd)/.venv/bin/dotrun"
• Go to any web project
• Run: $DOTRUN_PATH -p 9008:9008 -p 10008:10008

Check in the docker container that all specified ports are exposed. To do this you can run:

docker container ls
CONTAINER ID   IMAGE                                  COMMAND    CREATED              STATUS              PORTS                                                                      NAMES
8b91dd4a6b61   canonicalwebteam/dotrun-image:latest   "dotrun"   About a minute ago   Up About a minute   0.0.0.0:8004->8004/tcp, 0.0.0.0:9008->9008/tcp, 0.0.0.0:10008->10008/tcp   dotrun-snapcraft-io-1748349434

And in the output of the command, under the PORTS column you should see all the specified ports.

I tested it on a MacOS. It would be nice to have someone test it on a Linux machine before merging.

Issues

Fixes ISSUES-97

[goulinkh]

Looking good, asked for some minor changes.
Thanks for filing this PR :)

[alvaromateo]

Thanks for the review @goulinkh !
I did the changes you suggested. Could you review again please?

[goulinkh]

LGTM, thanks for the contribution and applying the changes @alvaromateo :)