fix the code for advice from coderabbitai

Author: jackzhhuang

vm2/executor/src/block_executor.rs

@@ -109,6 +109,12 @@ pub fn block_execute_with_outputs<S: ChainStateReader + ChainStateWriter + Sync>
         .len()
         .checked_sub(1)
         .ok_or_else(|| BlockExecutorError::BlockTransactionZero)?;
+    if txns.len() != outputs.len() {
+        return Err(BlockExecutorError::InvalidOutputCount {
+            expected: txns.len(),
+            actual: outputs.len(),
+        });
+    }
     for (index, (txn, output)) in txns
         .iter()
         .take(outputs.len())

vm2/types/src/error/block_executor.rs

@@ -33,4 +33,6 @@ pub enum BlockExecutorError {
     BlockExecuteRetryErr,
     #[error("block transaction is zero")]
     BlockTransactionZero,
+    #[error("the number of transaction outputs is not equal to the number of transactions, expected length: {expected}, actual length: {actual}")]
+    InvalidOutputCount { expected: usize, actual: usize },
 }