feat(skymp5-server): set spawn point in PlaceAtMe

[Pospelove]

[!IMPORTANT] Set spawn point for NPCs in PlaceAtMe function in PapyrusObjectReference.cpp.

• Behavior:
  • In PapyrusObjectReference::PlaceAtMe, set spawn point for NPCs using SetSpawnPoint(locationalData) when placing them.
• Misc:
  • No changes to other object types or additional functionality.

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