Switch to non-recursive Automake

3 jobs for non-recursive-Automake in 40 minutes and 9 seconds (queued for 7 seconds)
Status Name Job ID Coverage
  Test
passed job_clang_amd64 #5772
amd64

00:40:09

passed job_clang_cxx_amd64 #5773
amd64

00:12:58

passed job_gcc_amd64 #5771
amd64

00:37:07