chore: pin eslint version (#7971)
### Description
eslint 9.0.0 has some breaking changes that our current fixture isn't
set up to support. This is [preventing us from
releasing](https://github.com/vercel/turbo/actions/runs/8693806507/job/23842782558#step:5:256)
new versions of `turbo`.
Future work is to update the fixture to work with eslint 9
### Testing Instructions
`turbo test --filter=eslint-plugin-turbo` now passes
Closes TURBO-2808
