feat(utils): Produce valid snapshot names

[dubzzz]

Description

The previous version of loupe pulled within Vitest was not properly splitting strings to produce names of snapshots. The proposed PR bumps it and adds the relevant tests.

Fixes #5681

Note: I feel the lock has changed a bit more than what I would have expected. I updated it with pnpm@8.15.8 from a GitHub Codespace. I don't really get how to properly update it if it's not the right one.

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[sheremet-va]

Looks good to me! Thank you! The lint error is also on main, two PRs merged too quickly 😄