Enforce inequality between different species (#27586)

Fix missing species check in humanoid equality operation

Content.Shared/Preferences/HumanoidCharacterProfile.cs

@@ -361,6 +361,7 @@ namespace Content.Shared.Preferences
             if (Age != other.Age) return false;
             if (Sex != other.Sex) return false;
             if (Gender != other.Gender) return false;
+            if (Species != other.Species) return false;
             if (PreferenceUnavailable != other.PreferenceUnavailable) return false;
             if (Clothing != other.Clothing) return false;
             if (Backpack != other.Backpack) return false;