Fix empty trash with lot of files (#2528)
Fix empty trash with lot of files (#2528)

When more than 10 000 files must be deleted from Swift in trash worker,
we need to make several requests to Swift, as Swift is limited to 10 000
objects per bulk request.
nono/cozy-stack,nono/cozy-stack,nono/cozy-stack,nono/cozy-stack,nono/cozy-stack