make SNS SigningCertURL
configurable even if not resolvable
#11993
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Motivation
As reported by #11850, some SDK will verify the
SigningCertURL
field host part even if not validating the messages.This PR introduces a config flag to allow the user to set the host of the
SigningCertURL
to pass those regex pattern, even if the host is then non-resolvable, it should at least unblock the user, as they confirmed this would be sufficient for their use case.Changes
SNS_CERT_URL_HOST
to allow the user the set the host to an arbitrary valuefixes #11850
TODO
What's left to do: