Decomission of public ip fails

[LeeSmet]

When a zos node sends a decomission result of a public IP, an internal server error is returned by the explorer

example:
[+] provisiond: 2020-12-20T14:49:55Z error failed to decommission reservation 10768-1 error="failed to mark reservation as deleted: failed to release ip reservation: failed to release ip address status:500 Internal Server Error"

[DylanVerstraete]

Confirmed fix