No. For resilience you want multiple internet connections into the datacenter - as in two or more physical cables out to two or more ISPs. Then you need to run BGP with those ISPs so the IP address space you are using is reachable from both sides. Using multiple protocols over the same link can theoretically me helpful in some cases but I wouldn’t expect it to have any significant impact.
That said, I am not sure if the current tracker system supports hosts with both IPv4 and 6 - I would confirm with support. I believe you have to declare your node as either v4 or v6 not both.