Make base image bomoko/drupalbase-php and bomoko/drupalbase-nginx public (or replace with public repo)

Build fails due to base image being inaccessible. See screenshot:

<img width="1652" alt="Screenshot 2024-08-05 at 2 31 37 PM" src="https://github.com/user-attachments/assets/56426933-44ab-48c3-99bb-eb381b9aa4ab">
