[TASK] Update styleguide dependency to 8.0.1

Fixes a circular dependency if local core dev version
is not a release branch.

Change-Id: Iff1e08bdf5345a3de133c879f87f7b922c0e5b0e
Releases: master
Resolves: #75516
Reviewed-on: https://review.typo3.org/47568


Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>