patch `ReadableStream`

[satanTime]

fetch can receive Request object as the first parameter.

Its body property can be ReadableStream: https://developer.mozilla.org/en-US/docs/Web/API/Streams_API/Using_readable_streams

patch should detect the ReadableStream and patch it to inject the token response here: https://github.com/help-me-mom/cf-workers-turnstile-injection/blob/main/libs/%40cf-workers/turnstile-injection/src/frontend/index.ts#L107