Fix getVehicleSirensOn/setVehicleSirensOn for Rhino and Barracks (#4899) (#4900)

#### Summary

Add `VEHICLE_HAS_SIRENS` to Rhino (432) and Barracks (433) in
`g_ulVehicleAttributes` on both client and server, plus the
`gentable_vehattr` generator.

#### Motivation

Resolves #4899.

Both vehicles have functional sirens in vanilla SA, but `HasSirens()`
rejected them because the bit was missing from the attribute table. As a
result, `getVehicleSirensOn` returned `nil` and `setVehicleSirensOn` was
a no-op.

#### Test plan

1. Spawn a Rhino and a Barracks.
2. Run `setVehicleSirensOn(vehicle, true)`, then
`getVehicleSirensOn(vehicle)`. Expected: `true`.
3. Run `setVehicleSirensOn(vehicle, false)`, then
`getVehicleSirensOn(vehicle)`. Expected: `false`.
4. Confirm existing siren vehicles (e.g. Police 596, Ambulance 416,
Enforcer 427) still toggle correctly.

#### Checklist

* [x] Your code should follow the [coding
guidelines](https://wiki.multitheftauto.com/index.php?title=Coding_guidelines).
* [x] Smaller pull requests are easier to review. If your pull request
is beefy, your pull request should be reviewable commit-by-commit.

Author: Zephkek

Client/mods/deathmatch/logic/CClientVehicleManager.cpp

@@ -43,7 +43,7 @@ const SFixedArray<unsigned char, 212> g_ucMaxPassengers = {3, 1,   1,   1,   3,
 // Generated by MTA10\utils\gentable\gentable_vehattr.cpp
 static const SFixedArray<unsigned long, 212> g_ulVehicleAttributes = {
     0, 0, 0, 0, 0, 0, 8, 3, 0, 0, 0, 0, 0,  0,  0, 0, 2, 0,  0, 0, 32, 0, 0,  2, 0,  // 400-424
-    0, 0, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,  32, 0, 0, 0, 0,  8, 0, 0,  0, 0,  0, 0,  // 425-449
+    0, 0, 2, 0, 0, 0, 0, 3, 2, 0, 0, 0, 0,  32, 0, 0, 0, 0,  8, 0, 0,  0, 0,  0, 0,  // 425-449
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0,  0, 0, 0, 0,  0, 0, 0,  0, 0,  0, 0,  // 450-474
     0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0,  0,  0, 2, 0, 0,  0, 0, 0,  0, 64, 0, 0,  // 475-499
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 16, 0, 0, 0, 0,  0, 4, 12, 0, 0,  2, 8,  // 500-524

Client/utils/gentable/gentable_vehattr.cpp

@@ -50,6 +50,8 @@ int main()
     SetAttribute(table, 599, VEHICLE_HAS_SIRENS);
     SetAttribute(table, 601, VEHICLE_HAS_SIRENS);
     SetAttribute(table, 423, VEHICLE_HAS_SIRENS);
+    SetAttribute(table, 432, VEHICLE_HAS_SIRENS);
+    SetAttribute(table, 433, VEHICLE_HAS_SIRENS);
 
     SetAttribute(table, 592, VEHICLE_HAS_LANDING_GEARS);
     SetAttribute(table, 577, VEHICLE_HAS_LANDING_GEARS);

Server/mods/deathmatch/logic/CVehicleManager.cpp

@@ -41,7 +41,7 @@ static const SFixedArray<unsigned char, 212> g_ucMaxPassengers = {{3, 1,   1,
 // Generated by MTA10\utils\gentable\gentable_vehattr.cpp
 static const SFixedArray<unsigned long, 212> g_ulVehicleAttributes = {
     {0, 0, 0, 0, 0, 0, 8, 3, 0, 0, 0, 0, 0,  0,  0, 0, 2, 0,  0, 0, 32, 0, 0,  2, 0,  // 400-424
-     0, 0, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,  32, 0, 0, 0, 0,  8, 0, 0,  0, 0,  0, 0,  // 425-449
+     0, 0, 2, 0, 0, 0, 0, 3, 2, 0, 0, 0, 0,  32, 0, 0, 0, 0,  8, 0, 0,  0, 0,  0, 0,  // 425-449
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0,  0, 0, 0, 0,  0, 0, 0,  0, 0,  0, 0,  // 450-474
      0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0,  0,  0, 2, 0, 0,  0, 0, 0,  0, 64, 0, 0,  // 475-499
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 16, 0, 0, 0, 0,  0, 4, 12, 0, 0,  2, 8,  // 500-524