Describe the feature

Currently, we have two options:

• Reuse cache with fsCache enabled (default)
• Disable cache with fsCache disabled

But in some scenarios (especially debugging, e.g., debugging output with different configs), we might want to clean the previous cache and rebuild it (if fsCache is enabled). It's pretty much like the vite --force.

Since adding jiti clean to just delete all the caches wouldn't be that necessary (mostly referenced: vitejs/vite#10986), I think adding JITI_FORCE would be a lightweight solution.

Additional information

• Would you be willing to help implement this feature?