split out uscan from devscripts

Hi,

I see that the new uscan Salsa CI job is pulling in 424 everytime the
job is run.

Would that be enough of a reason to spin out uscan from devscripts
(with devscripts Depends: uscan)

Greetings

Alexandre

Get:420 http://deb.debian.org/debian sid/main amd64 strace amd64
6.18+ds-2 [1512 kB]
Get:421 http://deb.debian.org/debian sid/main amd64 systemd-cryptsetup
amd64 260.1-1 [150 kB]
Get:422 http://deb.debian.org/debian sid/main amd64 xauth amd64
1:1.1.2-1.1 [35.9 kB]
Get:423 http://deb.debian.org/debian sid/main amd64 xdg-user-dirs
amd64 0.20-1 [41.9 kB]
Get:424 http://deb.debian.org/debian sid/main amd64 gnupg-utils amd64
2.4.9-4 [192 kB]
Preconfiguring packages ...
Fetched 189 MB in 3s (64.2 MB/s)