Use a tmpfs directory for deposit uploads in deposit rpc server
it seems the deposit rpc server is storing and uncrompressing archive in /tmp.
it would probably be worth it to use a tmpfs for this kind of workload
swh@deposit-68c5877c98-vbrsw:/tmp$ ls -al
total 6054
drwxrwxrwx 3 root root 4 Feb 20 14:45 .
drwxr-xr-x 21 root root 21 Feb 20 09:04 ..
drwxr-xr-x 3 swh swh 3 Feb 20 12:43 swh-deposit
-rw------- 1 swh swh 6425600 Feb 20 14:40 tmpbzb440uw.upload.zip