Running project_core locally runs composer outside of ddev

Problem/Motivation

I'm trying to set it up so I can run DrupalPod outside of Gitpod locally and ran into an issue because my Desktop still has PHP 8.2 rather than PHP 8.3. Normally this would not be an issue because we should be running all composer commands inside the ddev web container.

However with project_core, (drupal_setup_core.sh), it runs outside of ddev.

Steps to reproduce

Proposed resolution

Update drupal_setup_core.sh composer commands to run via ddev.

Remaining tasks

Going to make a merge request.