Minor: typing the SDK wheel build command mentions a stale cache path in the error message

## Summary

When building the SDK wheel with an invalid venv, the error message references a stale cache path (cosmetic only).

## Repro

```
python -m build --wheel
```

## Context links

https://webhook.site/989f184c-b193-4551-b55c-1eaed2f93ffd?src=plain

```
https://webhook.site/989f184c-b193-4551-b55c-1eaed2f93ffd?src=codeblock
```

## Expected

Correct path in the error message.