The settings handler SSRF test table expected the generic "private ip"
error string for the cloud-metadata case (169.254.169.254). After the
url_validator was updated to return a distinct "cloud metadata" error for
that address, the handler test's errorContains check failed on every CI run.
Updated the test case expectation from "private" to "cloud metadata" to
match the more precise error message now produced by the validator.
379c664b5c