Error parsing IPv6 gossip address

[DollyVolley]

Describe the bug
When a valid IPv6 address is used for gossip, a warning is displayed during startup stating that too many colons are contained in the address. Other "bindAddress" fields do not seem to be effected.

To Reproduce
Steps to reproduce the behavior:

• Go to /var/lib/hornet/config.json
• Set network.gossip.bindaddress to any valid IPv6 eg. [::]:15600
• Start the hornet node

Expected behavior

• Normal start of node
• Gossip working

Environment information:

• OS: [Ubuntu 20.04]
• RAM: [4 GB]
• Cores: [e.g. 4 Cores]
• Type: [Raspberry Pi 4B]
• HORNET version [0.4.0]

Additional context
Warning I received with network.gossip.bindadress: [::1]:15600

[muXxer]

Fixed with #530