* upstream/master: (47 commits)
Update CHANGELOG.md for 9.4.5
Update charlock_holmes
add a changelog entry
switch to multi-line before block
restructure the #new_key notification spec
don't send devise notifications to the ghost user
reset_delivered_emails before testing #new_key
skip the :read_project check for new_project_member
move the member spec to be with the other ones
add a spec for new_group_member
add a spec for never emailing the ghost user
rubocop fix
a membership with no user is always notifiable
check notifiability for more emails
add Member#notifiable?(type, opts)
make NotificationRecipient a little more customizable
Add notes about database performance for MySQL
fix confidential border issue as well as confidential styles leaking on new MR
Migrate force push check to Gitaly
Add option to disable project export on instance
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