disalbe unnecessary blhc and test-build-any CI test

debootstrap is just a shell script, we don't need to check build hardening
and "any" architecture build.
5 jobs for master in 8 minutes and 31 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #322473
build

00:02:45

 
  Test
passed #322476
lintian

00:01:37

passed #322477
piuparts

00:03:03

passed #322475
reprotest

00:02:19

passed #322474
test-build-all

00:02:40