security/tor-devel: Update 0.3.5.5-alpha -> 0.3.5.6-rc
Changelog: https://gitweb.torproject.org/tor.git/tree/ChangeLog?h=tor-0.3.5.6-rc&id=a06093faaa65b0e0645f29c74abddcb42ac6e975
Reported by: upstream notification