fix(harvest): invalid remote URL on record identifiers with "urn:uuid" codespace

[streino]

Fix ecolabdata/ecospheres#1019

[streino]

@maudetes I'd like your input before polishing the PR 🙏

Doesn't feel too good to handle a corner case, but I don't see any practical/robust way to handle all URN namespaces. I'd say "urn:uuid" is standard enough to warrant an extra if?

Note that there's nothing GeoNetwork specific here: other software, or even GeoNetwork users designing their own record templates, can legitimately use codespaces in ISO-19115-3, and since IDs are often UUIDs, that makes "urn:uuid" one of the most likely candidates.