Connection closed

[glihm]

Describe the bug
i experienced this error multiple times while doing sozo migrate, seems to happen randomly

Caused by: Declaration of class failed: error sending request for url (http://localhost:5050/): connection closed before message completed error: script failed with exit code: ExitCode(unix_exit_status(1))

same error on torii side
ERROR torii::engine: Fetching data. error=error sending request for url (http://0.0.0.0:5050/): connection closed before message completed

When this error happen, its then impossible to close katana with ctrl+c, you have to kill -9

(ported from dojoengine/dojo#3023)