[FEATURE] monorepo prisma example

[j4tmr]

Is your feature request related to a problem?

• with custom prisma output
• how to set serverExternalPackages

Describe the solution you'd like

Describe alternatives you've considered

@opennextjs/cloudflare version

1.3.1

Additional context

#699
#623

Before submitting

• I have checked that there isn't already a similar feature request
• This is a single feature (not multiple features in one request)

[vicb]

Did you check https://github.com/opennextjs/opennextjs-cloudflare/tree/main/examples/prisma?