Add auto-create database for deployments from Deploy button

### What problem are you trying to solve?

The [deploy button](https://docs.deno.com/deploy/reference/button/#:~:text=The%20Deploy%20Button%20offers%20a,hosted%20in%20a%20Git%20repository.) is really useful for README.md’s but some projects require a database which means it’s harder to set it up.

### Describe the solution you'd like

A query parameter to auto create the database would be really helpful.

### Describe alternatives you've considered

Additional steps on the README page but makes the deploy button less useful if it does not deploy without extra configuration

### Documentation, Adoption, Migration Strategy

_No response_