When the orport-srcaddr option is set, we bind to a source IP address
before dialing the ORPort/ExtORPort. tor similarly binds to a source IP
address when OutboundBindAddress is set in torrc. Since tor 0.4.7.13,
tor sets IP_BIND_ADDRESS_NO_PORT, and because problems arise when some
programs use IP_BIND_ADDRESS_NO_PORT and some do not, we also have to
start using IP_BIND_ADDRESS_NO_PORT when we upgrade tor
(tpo/anti-censorship/pluggable-transports/snowflake#40270).
Related: tpo/anti-censorship/pluggable-transports/snowflake#40198
