Use same `PreimageOracle` for alphabet VM and cannon VM (#9314)

packages/contracts-bedrock/scripts/Deploy.s.sol

@@ -1076,7 +1076,7 @@ contract Deploy is Deployer {
             _factory: factory,
             _gameType: GameTypes.ALPHABET,
             _absolutePrestate: outputAbsolutePrestate,
-            _faultVm: IBigStepper(new AlphabetVM(outputAbsolutePrestate)),
+            _faultVm: IBigStepper(new AlphabetVM(outputAbsolutePrestate, PreimageOracle(mustGetAddress("PreimageOracle")))),
             // The max depth for the alphabet trace is always 3. Add 1 because split depth is fully inclusive.
             _maxGameDepth: cfg.faultGameSplitDepth() + 3 + 1,
             _allowUpgrade: _allowUpgrade

packages/contracts-bedrock/test/dispute/FaultDisputeGame.t.sol

@@ -49,7 +49,7 @@ contract FaultDisputeGame_Init is DisputeGameFactory_Init {
         // Set the extra data for the game creation
         extraData = abi.encode(l2BlockNumber);
 
-        AlphabetVM _vm = new AlphabetVM(absolutePrestate);
+        AlphabetVM _vm = new AlphabetVM(absolutePrestate, new PreimageOracle(0, 0, 0));
 
         // Deploy an implementation of the fault game
         gameImpl = new FaultDisputeGame({
@@ -116,7 +116,7 @@ contract FaultDisputeGame_Test is FaultDisputeGame_Init {
     /// @dev Tests that the constructor of the `FaultDisputeGame` reverts when the `_splitDepth`
     ///      parameter is greater than or equal to the `MAX_GAME_DEPTH`
     function test_constructor_wrongArgs_reverts(uint256 _splitDepth) public {
-        AlphabetVM alphabetVM = new AlphabetVM(absolutePrestate);
+        AlphabetVM alphabetVM = new AlphabetVM(absolutePrestate, new PreimageOracle(0, 0, 0));
 
         // Test that the constructor reverts when the `_splitDepth` parameter is greater than or equal
         // to the `MAX_GAME_DEPTH` parameter.

packages/contracts-bedrock/test/mocks/AlphabetVM.sol

@@ -12,9 +12,9 @@ contract AlphabetVM is IBigStepper {
     Claim internal immutable ABSOLUTE_PRESTATE;
     IPreimageOracle public oracle;
 
-    constructor(Claim _absolutePrestate) {
+    constructor(Claim _absolutePrestate, PreimageOracle _oracle) {
         ABSOLUTE_PRESTATE = _absolutePrestate;
-        oracle = new PreimageOracle(0, 0, 0);
+        oracle = _oracle;
     }
 
     /// @inheritdoc IBigStepper