Investigate out of wasm memory in vitest

[mathieu-lemuzic]

Investigate the following error:

RangeError: WebAssembly.instantiate(): Out of memory: wasm memory

It occurs in core-frontend tests and is caused by the meshoptimizer module which loads wasm code at module import time and seems to bother vitest somehow. My educated guess is that there is a memory leak in vitest and that wasm modules are not cleaned up between test runs.

It was introduced in #6956 where we temporarily suppressed it by adjusting the vitest config to enable dangerouslyIgnoreUnhandledErrors.