Prometheus exporter - interpret ::1 as 0:0:0:0:0:0:0:1

Hi,

If I configure the Prometheus exporter to allow requests from ::1 (ipv6 localhost, short form) it doesn't actually honour requests.

In the logs you can see entries such as:
```Prometheus exporter received client request from: 0:0:0:0:0:0:0:1```

Indeed, once you add 0:0:0:0:0:0:0:1 (ipv6 localhost, medium form) it starts working.

It's a minor issue, but nice to get sorted as most people are used to ::1.

L’issue indica il Prometheus exporter e la relativa request allowlist, ma non specifica alcun file o test. Individua la gestione della allowlist e riproduci una richiesta da ::1; quindi verifica che venga accettata la forma abbreviata configurata quando l’indirizzo del client viene registrato come 0:0:0:0:0:0:0:1.

Scritto dal modello di indicizzazione a partire dal testo della issue.