Path duplication on temp files

[teneburu]

Describe the Bug

When using temporary files instead of RAM, the checkAndMakeDir incorrectly recreates the entire absolute path structure within the current working directory. Results in deeply nested duplicate directories like
/home/user/test-plugin/home/user/test-plugin/tmp/tmp-1-1740505100646

Link to the code that reproduces this issue

https://github.com/teneburu/payload-plugin-bigupload

Reproduction Steps

On new instance, add useTempFiles: true in upload in buildConfig. upload a file and bon appétit

Which area(s) are affected? (Select all that apply)

area: core

Environment Info

payload: 3.24.0
  next: 15.1.5
  Node: 20.18.1