docker-compose do not use --project-name param to set COMPOSE_PROJECT_NAME

This is an issue in docker-compose but affects devcontainers: the devcontainer `use docker-compose --project-name `, but unfortunatelly and surprisingly it do not set COMPOSE_PROJECT_NAME for the compose file. The short version of that command line param behave correctly (-p).
I would recommend to change --project-name command line param usage to -p.

Start by reproducing the devcontainer command with --project-name and compare its behavior with the equivalent -p form. Trace how the CLI passes each option to Docker Compose and verify that the long form sets COMPOSE_PROJECT_NAME for the compose file. Done means both forms produce the same project-name behavior.

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