CLOUDNS: API error messages leak credentials

[hmoffatt]

Describe the bug
If a CLOUDNS API error occurs, the credentials are leaked. This is because the credentials are passed in the query part of the URL, and the whole URL is printed in the error.

To Reproduce
Seen while debugging ClouDNS changes, but it would occur if you had the credentials wrong.

Expected behavior
Credentials should not be leaked in the error text.

DNS Provider

• ClouDNS

Additional context
Add any other context about the problem here.

[cafferata]

Ping @pragmaton, the maintainer of the ClouDNS provider.

[hmoffatt]

I think the simplest change is not to print the URL - change is in the referenced PR. Otherwise a sanitized URL could be printed, if this is desired.