Correct the return type of simulateTransaction when accounts are not loaded (#2865)

This was returning `accounts: null` at the top level instead of inside `value`

See 7192f3d

Author: steveluscher

.changeset/fast-cars-knock.md

@@ -0,0 +1,5 @@
+---
+'@solana/rpc-api': patch
+---
+
+Fixed a TypeScript error where the return value of `simulateTransaction` claimed there was an `accounts` property at the top level when it is in fact `value.accounts`

packages/rpc-api/src/simulateTransaction.ts

@@ -127,7 +127,7 @@ export interface SimulateTransactionApi extends RpcApiMethods {
     simulateTransaction(
         base58EncodedWireTransaction: Base58EncodedBytes,
         config?: SigVerifyAndReplaceRecentBlockhashConfig & SimulateTransactionConfigBase,
-    ): SimulateTransactionApiResponseBase & { accounts: null };
+    ): SimulateTransactionApiResponseBase & SolanaRpcResponse<{ readonly accounts: null }>;
 
     /** Simulate sending a transaction */
     simulateTransaction(
@@ -160,5 +160,5 @@ export interface SimulateTransactionApi extends RpcApiMethods {
     simulateTransaction(
         base64EncodedWireTransaction: Base64EncodedWireTransaction,
         config: SigVerifyAndReplaceRecentBlockhashConfig & SimulateTransactionConfigBase & { encoding: 'base64' },
-    ): SimulateTransactionApiResponseBase & { accounts: null };
+    ): SimulateTransactionApiResponseBase & SolanaRpcResponse<{ readonly accounts: null }>;
 }