allow additional ranges of ips

[davidcarrera]

We have the same situation that is described in this PR
ory/x#806

A customer is using range 198.18.0.0/16 for their K8s services, and kratos is therefore unable to access other services (perminator in our case).

The situation comes from SSRF component used by kratos, that limits access to these IP ranges:
https://github.com/daenney/ssrf/blob/main/ssrf_gen.go#L49

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