Support Prisma 8 in `@cals/prisma`

Support Prisma 8

@casl/prisma currently only supports Prisma versions up to v7.

The current peer dependency is:

"@prisma/client": "^4.16.0 || ^5.0.0 || ^6.0.0 || ^7.0.0"

Please consider adding support for Prisma 8.

Expected change

• Support @prisma/client v8
• Update tests if necessary

Thanks!