fix: url validaton failures

[samm-git]

Description

While analyzing failure of the report schema validation i found URL looks like that: "https://ubuntu.com/security/notices/USN-5051-4 (regression only in trusty/esm)". This causing gitlab to mark report as invalid as its failing to validate against the schema. Patch provided just using first word of the url word.

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[knqyf263]

Thanks!