Update to Recruitment Privacy Notice related to right to work verification data collection

Why is this change being made?

An additional resource to verify Right to Work status has been identified as a solution for Recruitment where candidates are non-US residents and not hired by a PEO who would perform this verification. This edit adds further clarification that GitLab may obtain personal data related to right to work status from agencies.

Author Checklist

• Provided a concise title for this Merge Request (MR)
• Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
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