sysdeps: use glob for libclang and llvm on FreeBSD

2 jobs for feature/regex-based-include-searching in 10 minutes and 45 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Test
passed test-py3 #1326875

00:02:15

passed ub20.04-py3-glib #1326876

00:10:45