Prisma dataproxy/deno ecosystem test no longer completes

[mmastrac]

Version: Deno v1.39.0

Caused by #21490 (via git bisect)

Repro:

Check out https://github.com/prisma/ecosystem-tests in /tmp/

Run against tree:

cargo build && bash -c 'cd /tmp/ecosystem-tests/dataproxy/deno && $DENO_SRC_DIR/target/debug/deno run -A --unstable npm:prisma@5.8.0-dev.25 generate'

Broken versions print:

┌─────────────────────────────────────────────────────────────┐
│  Deploying your app to serverless or edge functions?        │
│  Try Prisma Accelerate for connection pooling and caching.  │
│  https://pris.ly/cli/accelerate                             │
└─────────────────────────────────────────────────────────────┘

(hangs)

Working versions print:

┌─────────────────────────────────────────────────────────────┐
│  Deploying your app to serverless or edge functions?        │
│  Try Prisma Accelerate for connection pooling and caching.  │
│  https://pris.ly/cli/accelerate                             │
└─────────────────────────────────────────────────────────────┘

Warning: Not implemented: ChildProcess.prototype.disconnect