Reduce number of txs in batched txs test

src/index.test.ts

@@ -49,7 +49,7 @@ const registryTests = () => {
 
     beforeAll(async () => {
       // Fund 10 new accounts for the test
-      accounts = await createTestAccounts(10);
+      accounts = await createTestAccounts(5);
       for (let i = 0; i < accounts.length; i++) {
         await registry.sendCoins({ denom: DENOM, amount: '1000000', destinationAddress: accounts[i].address }, privateKey, fee);
       }