Bug 20299: Koha is a gift

Bug 20299: Koha is a gift

This patch updates the database update script replacing the "pile of
poo" emoji with the "wrapped gift" emoji.

To test, apply the patch and go to Administration -> System preferences
-> Local use. Set the "Version" preference back to trigger a database
update. Go through the database update process and confirm that the
"Convert DB tables to utf8mb4" upgrade message includes a gift emoji.

Signed-off-by: Mason James <mtj@kohaaloha.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>