Add probetest commandline option to specify STUN URL
We have a hardcoded default value for the STUN URL stun:stun.l.google.com:19302, which is fine for our deployment purposes, but does not work for simulations.
Needed for #40288 (closed)
We have a hardcoded default value for the STUN URL stun:stun.l.google.com:19302, which is fine for our deployment purposes, but does not work for simulations.
Needed for #40288 (closed)