API:/v1/provide-list-of-network-element-interfaces-on-path response is having extra text

[Ziabatcha]

As per spec, target-mac-address should have only mac address but API:/v1/provide-list-of-network-element-interfaces-on-path response target-mac-address is having extra text in response

{
    "target-mac-address": "target-mac-address-00:99:88:00:99:89",
    "mount-name": "513250011",
    "original-ltp-name": "LAN 1/3/2",
    "vlan-id": 500,
    "time-stamp-of-data": "2023-12-18T14:12:46.226Z"
  }

[schiavi-siae]

Closed by #173