[Bug Fix] Fix Flag Updating with SetGMStatus() in Lua. (#2554)

# Notes
- Perl was sending `UpdateAdmin()` after `SetGMStatus()`, Lua wasn't, so only Perl was updating properly.
- Fix is to just put `UpdateAdmin()` inside `SetGMStatus()`.

zone/lua_client.h

@@ -434,6 +434,8 @@ public:
 	bool HasItemEquippedByID(uint32 item_id);
 	int GetHealAmount();
 	int GetSpellDamage();
+	void UpdateAdmin();
+	void UpdateAdmin(bool from_database);
 
 	int GetEnvironmentDamageModifier();
 	void SetEnvironmentDamageModifier(int value);