Prisma Studio v7 + mysql/mariadb - "introspect" operation failed

//packages
  "@prisma/adapter-mariadb": "^7.0.0",
  "@prisma/client": "^7.0.0",

//prisma.config.ts
import "dotenv/config";
import { defineConfig, env } from "prisma/config";

export default defineConfig({
    schema: "./schema.prisma",
    datasource: {
        url: env("DB_URL"),
    },
    migrations: {
        path: "./migrations",
    },
});

// schema.prisma
datasource db {
    provider = "mysql"
}

generator client {
    provider = "prisma-client"
    output   = "./generated/client"
}