Update snapshot test for protocol type coercion bug.

This Python protocol was doing something like module.load_labware("load_name", 8), which is a bug: the second argument is supposed to be a string display name, but what was passed was an integer, presumably copy-pasted from a protocol.load_labware() call.

Pydantic v1 was coercing the int to a str and covering up the bug. Pydantic v2 doesn't do that particular coercion, so the bug surfaces.