node: Serialize and deserialize ipv6 addresses in square brackets — heartwood

Completely forgot about serialization in 5ba439004894d9a6e62bc439a8530e4981f7912d. This should fix parsing of IPv6 addresses for example in config.json

 #[derive(Clone, Eq, PartialEq, Debug, Hash, From, Wrapper, WrapperMut, Serialize, Deserialize)]
 #[wrapper(Deref)]
 #[wrapper_mut(DerefMut)]
 #[serde(try_from = "String", into = "String")]
 #[cfg_attr(
     feature = "schemars",
     derive(schemars::JsonSchema),

 ")
 )]
 pub struct Address(
     #[serde(with = "crate::serde_ext::string")]
     #[cfg_attr(feature = "schemars", schemars(
         with = "String",
         regex(pattern = r"^.+:((6553[0-5])|(655[0-2][0-9])|(65[0-4][0-9]{2})|(6[0-4][0-9]{3})|([1-5][0-9]{4})|([0-5]{0,5})|([0-9]{1,4}))$"),

     }
 }
 impl TryFrom<String> for Address {
     type Error = <Self as FromStr>::Err;
     fn try_from(value: String) -> Result<Self, Self::Error> {
         value.parse()
     }
 }
 impl From<Address> for String {
     fn from(value: Address) -> Self {
         value.to_string()
     }
 }
 impl FromStr for Address {
     type Err = AddrParseError;