hooks: Don't use Ruby hooks by default
We have recently started migration away from hooks stored in Gitaly's
Ruby directory, where we instead use a temporary directory we create at
startup time which contains symlinks to gitaly-hooks
. This change has
been enabled and rolled out to production without any issues so far.
Use the new temporary hooks directory by default.
Changelog: changed
Part of #4006 (closed)
Edited by Patrick Steinhardt