fix: added programId field in TokenBalance type (#3592)

* added programId field in TokenBalance type

* updated TokenBalanceResult

* linting and testing

Author: shivaji43

src/connection.ts

@@ -1050,6 +1050,7 @@ export type TokenBalance = {
   accountIndex: number;
   mint: string;
   owner?: string;
+  programId?: string;
   uiTokenAmount: TokenAmount;
 };
 
@@ -2330,6 +2331,7 @@ const TokenBalanceResult = pick({
   accountIndex: number(),
   mint: string(),
   owner: optional(string()),
+  programId: optional(string()),
   uiTokenAmount: TokenAmountResult,
 });