node: use `outbound.get` over `outbound.get_mut`
The following block did not need mutable access to the outbound
value.
To avoid confusion around mutable access, the call was downgraded to
get so that the reader can safely know there is no mutation
happening.
The following block did not need mutable access to the outbound
value.
To avoid confusion around mutable access, the call was downgraded to
get so that the reader can safely know there is no mutation
happening.
Rebase