[SCT][test_cluster_healthcheck] Consider leading zeroes might be omitted for IPv6 addresses in sctool status ... output

[mikliapko]

test_cluster_healthcheck test might fail because of the Manager omitting leading zeroes for IPv6 addresses in sctool status ... output:

> Issuing: 'sctool status -c 916790ae-7a7d-472a-825e-2691b76f8bf3'
Datacenter: us-east
╭────┬──────────┬──────────┬────────────────────────────────────────┬────────┬──────┬───────────┬──────────┬───────┬──────────────────────────────────────╮
│    │ CQL      │ REST     │ Address                                │ Uptime │ CPUs │ Memory    │ Scylla   │ Agent │ Host ID                              │
|────┼──────────┼──────────┼────────────────────────────────────────┼────────┼──────┼───────────┼──────────┼───────┼──────────────────────────────────────┤
│ UN │ UP (0ms) │ UP (0ms) │ 2600:1f18:7f4:3c00:566f:f50e:aad4:cd31 │ 26m13s │ 2    │ 15.334GiB │ 2024.2.4 │ 3.4.1 │ 2aa35b90-d284-4142-a5c6-5ec13a3ad94a │
│ DN │ -        │ -        │ 2600:1f18:7f4:3c00:83ce:688:5b5e:943a  │ -      │ -    │ -         │ -        │ -     │ f02b53a7-4c46-4710-89fc-9f8895ed9604 │
│ UN │ UP (0ms) │ UP (0ms) │ 2600:1f18:7f4:3c00:e75b:e7e0:8258:cf0b │ 26m11s │ 2    │ 15.334GiB │ 2024.2.4 │ 3.4.1 │ 69d50a03-1101-49e9-b40b-beefe22af1f0 │

IPv6 address 2600:1f18:7f4:3c00:83ce:688:5b5e:943a has omitted zero for 688 block.

The test fails on the step

assert dict_host_health[other_host_ip].status == HostStatus.DOWN, "Host: {} status is not 'DOWN'".format(other_host_ip)

with error

2025-02-25 11:07:04.770: (TestFrameworkEvent Severity.ERROR) period_type=one-time event_id=56322200-032c-499d-a258-82b9bc1fdee7, source=ManagerSanityTests.test_manager_sanity (mgmt_cli_test.ManagerSanityTests) [Mgmt cluster Health Check]() message=Traceback (most recent call last):
File "/home/ubuntu/scylla-cluster-tests/mgmt_cli_test.py", line 1482, in test_manager_sanity
self.test_cluster_healthcheck()
File "/home/ubuntu/scylla-cluster-tests/mgmt_cli_test.py", line 1197, in test_cluster_healthcheck
assert dict_host_health[other_host_ip].status == HostStatus.DOWN, "Host: {} status is not 'DOWN'".format(
KeyError: '2600:1f18:07f4:3c00:83ce:0688:5b5e:943a'

Argus link - https://argus.scylladb.com/tests/scylla-cluster-tests/163f82a9-0fd3-4da9-aa59-03fc43661dcb