Fix items tasks error

[corentin-soriano]

The scheduler is stuck on tasks that handle sharekeys creation:

• Fix SQL query:

#0 /var/www/teampass/vendor/sergeytsalkov/meekrodb/db.class.php(890): MeekroDB->queryHelper(Array, Array)
#1 /var/www/teampass/vendor/sergeytsalkov/meekrodb/db.class.php(116): MeekroDB->query('SELECT id, publ...', Array)
#2 /var/www/teampass/sources/main.functions.php(2640): DB::__callStatic('query', Array)

• Improve task recursion to avoid high CPU load.
• Error on item creation with empty password since Code review fixes #4412 (if ($encrypted === false) { -> if (empty($encrypted)) {).
• Error on tasks page (missing field arguments in SQL query).

[nilsteampassnet]

Reaaly nice 👍