Update prisma

[humphd]

While updating my local env, I notice prisma is ready for a major version bump. This will require more than just updating the package version, I suspect.

┌─────────────────────────────────────────────────────────┐
│  Update available 3.15.2 -> 4.7.1                       │
│                                                         │
│  This is a major update - please follow the guide at    │
│  https://pris.ly/d/major-version-upgrade                │
│                                                         │
│  Run the following to update                            │
│    npm i --save-dev prisma@latest                       │
│    npm i @prisma/client@latest                          │
└─────────────────────────────────────────────────────────┘