Werk #16104: group_id: group ids no longer allow newline characters

This werk addresses an issue identified by our QA team. Previously, you could include the newline character in the 'name' field when creating a contact_group, service_group or host_group via the following endpoints

/domain-types/contact_group_config/collections/all /domain-types/service_group_config/collections/all /domain-types/host_group_config/collections/all

We have now made pattern matching stricter, which means that this is no longer allowed.

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