Fix broken directory request to the DirPort

Fix broken directory request to the DirPort

Commit e72cbf7a4 introduced a change to directory_initiate_command_rend()
that made tor use the ORPort when making a directory request to the DirPort.
The primary consequence was that a relay couldn't selftest its DirPort thus
failing to work and join the network properly.

The main issue was we were always considering an anonymized connection to be
an OR connection which is not true.

Fixes #18623

Signed-off-by: David Goulet <dgoulet@ev0ke.net>