Fix Prisma migrate file format

[henrytoone]

Summary

When using PowerShell on Windows, the command in the docs to generate a migration file produces a file in UTF-16 format which wrangler is unable to migrate properly.
Updating the command to use the output flag instead produces a file in UTF-8 which runs fine with the migrate command

Solution found in: prisma/prisma#23702
Prisma release with the fix: https://github.com/prisma/prisma/releases/tag/5.12.1

Screenshots (optional)

Error produced when file is in UTF-16

[KianNH]

Thanks for catching this!

[holopin-bot]

Congratulations @henrytoone, the maintainer of this repository has issued you a holobyte! Here it is: https://holopin.io/holobyte/cm1qiu6bi23450cl99gyyzcn5

This badge can only be claimed by you, so make sure that your GitHub account is linked to your Holopin account. You can manage those preferences here: https://holopin.io/account.
Or if you're new to Holopin, you can simply sign up with GitHub, which will do the trick!