Update request: mongocxx 3.8.2 → 3.10.2

[Vcele]

• Package name: mongocxx
• Latest released version: 3.10.2
• Current version on the unstable channel: 3.8.2
• Current version on the stable/release channel: 3.8.2
• [x] Checked the nixpkgs pull requests

Notify maintainers @adriandole

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[Vcele]

324374 should fix this 👍🏻