Manual self host, update database

When self hosting manually via Linux Manual Deployment | Bitwarden Help Center, I do not see a way to run database migrations like what happens with the script.

When you use the standard installation and run update, it pulls the latest images and runs a database migration via bitwarden/setup, however I do not see any way to do this via the manually managed guide.

Looking further into the source, I can see the Admin container runs a DB migration on startup, thus the migration via the setup container is no longer needed.

With this in mind, is there any reason the script runs a DB migration if this is handled by the Admin container?