Describe the bug

Setup files are not re-evaluated when disabling isolation in browser mode due to caching.

Reproduction

https://github.com/vitest-dev/vitest/pull/8884/files

System Info

N/A

Used Package Manager

pnpm

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.