For TCP dumps/PCAPs, show the publicly available source IP and port

Currently, PCAP files show internal (pre-NAT) source IP addresses and ports rather than the public-facing values that end users would see.

In other words, our PCAPs show that Checkly sent a packet from one IP address, but the end user would see that same traffic originating from a different IP address (due to our NAT).

Ideally, the IP and port in our PCAPs would match the public-facing IP and port.