fix the unit test of move

[JustXxx]

forge test --mc FaultDisputeGameN_Test --mt .move.

Ran 15 tests for test/dispute/FaultDisputeGameN.t.sol:FaultDisputeGameN_Test
[PASS] test_move_clockCorrectness_succeeds() (gas: 915771)
[PASS] test_move_clockExtensionCorrectnessSplitGrandChild_succeeds() (gas: 259801)
[PASS] test_move_clockTimeExceeded_reverts() (gas: 48804)
[PASS] test_move_correctStatusExecRootForLastAttackBranch_succeeds() (gas: 662122)
[PASS] test_move_correctStatusExecRoot_succeeds() (gas: 681330)
[PASS] test_move_defendRoot_reverts() (gas: 29737)
[PASS] test_move_duplicateClaim_reverts() (gas: 265389)
[PASS] test_move_duplicateClaimsDifferentSubgames_succeeds() (gas: 841908)
[PASS] test_move_gameDepthExceeded_reverts() (gas: 913853)
[PASS] test_move_gameNotInProgress_reverts() (gas: 26248)
[PASS] test_move_incorrectBondAmount_reverts() (gas: 33335)
[PASS] test_move_incorrectDisputedIndex_reverts() (gas: 267329)
[PASS] test_move_incorrectStatusExecRoot_reverts() (gas: 488720)
[PASS] test_move_nonExistentParent_reverts() (gas: 25664)
[PASS] test_move_simpleAttack_succeeds() (gas: 264400)
Suite result: ok. 15 passed; 0 failed; 0 skipped; finished in 301.45ms (10.59ms CPU time)

[dajuguan]

All tests passed. LGTM.