Just change the query to
SELECT * FROM (
SELECT queue_name, jobs_pend, jobs_run
FROM queues
ORDER BY queue_name
LIMIT 5
) UNION ALL
SELECT 'others', SUM(jobs_pend), SUM(jobs_run) FROM (
SELECT jobs_pend, jobs_run
FROM queues
ORDER BY queue_name
LIMIT 18446744073709551615 OFFSET 5
)
Note: Tested only in SQLite, but it seems the LIMIT syntax is the same as in MySQL according to a cursory glance at the documentation. (Well, in fact, the large number has to be lower in SQLite, but MySQL documentation shows this constant).
($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,