d/librem5-ci: Add common jobs

This makes sure we verify the tarball checksum
5 jobs for pristine-tarball-check in 6 minutes and 26 seconds
Status Job ID Name Coverage
  Package
passed #358204
librem5
package-pureos-byzantium

00:01:03

passed #358205
librem5:arm64
package-pureos-byzantium:arm64

00:02:41

 
  Test Package
passed #358206
librem5
autopkgtest-pureos-byzantium-package

00:00:54

passed #358208
librem5
check-tarball

00:00:56

passed #358207
librem5
lintian-pureos-byzantium-package

00:00:50