perf: switch to tinyglobby

[43081j]

This is exactly what is in #455 but with the tests fixed.

I can't push to Ben's branch. So feel free to merge this one or merge it into Ben's branch and merge that.

[43081j]

alright windows, as per usual, is falling over

ill sort it some other time. its late here 😅

[43081j]

alright because a whole raft of nonsense changed since i touched this, here's a summary:

• tinyglobby returns unix paths while globby returns windows paths
  • i've updated isUnder to unixify the base path before comparing
• globby returns relative paths if the input glob is relative, and absolute paths if it is absolute
  • i've updated cwd to always be absolute
  • i've set absolute: true so glob results are always absolute too
  • resolvePath expects a relative path so i've ensured we always calculate the relative one from the absolute path

@crutchcorn this should be good now. ping me if you have questions as i realise its no longer a straightforward diff

[crutchcorn]

Thanks for this!