librem5-devkit-host: Depend on uuu

We have that in our CI repos now
2 jobs for depend-on-uuu in 2 minutes (queued for 1 minute and 10 seconds)
latest
Status Name Job ID Coverage
  Build
passed build:deb #5749
librem5

00:01:19

passed build:docs #5748
librem5

00:01:35