update test deltas for preflight

cmd/soroban-rpc/internal/test/simulate_transaction_test.go

@@ -251,7 +251,7 @@ func TestSimulateTransactionSucceeds(t *testing.T) {
 	assert.InDelta(t, uint32(expectedTransactionData.Resources.Instructions), uint32(transactionData.Resources.Instructions), 3200000)
 	assert.InDelta(t, uint32(expectedTransactionData.Resources.ReadBytes), uint32(transactionData.Resources.ReadBytes), 10)
 	assert.InDelta(t, uint32(expectedTransactionData.Resources.WriteBytes), uint32(transactionData.Resources.WriteBytes), 300)
-	assert.InDelta(t, int64(expectedTransactionData.ResourceFee), int64(transactionData.ResourceFee), 3000)
+	assert.InDelta(t, int64(expectedTransactionData.ResourceFee), int64(transactionData.ResourceFee), 4000)
 
 	// Then decode and check the result xdr, separately so we get a decent diff if it fails.
 	assert.Len(t, result.Results, 1)
@@ -1125,7 +1125,7 @@ func TestSimulateSystemEvent(t *testing.T) {
 	err = xdr.SafeUnmarshalBase64(response.TransactionData, &transactionData)
 	require.NoError(t, err)
 
-	assert.InDelta(t, 7464, uint32(transactionData.Resources.ReadBytes), 200)
+	assert.InDelta(t, 7464, uint32(transactionData.Resources.ReadBytes), 600)
 	// the resulting fee is derived from compute factors and a default padding is applied to instructions by preflight
 	// for test purposes, the most deterministic way to assert the resulting fee is expected value in test scope, is to capture
 	// the resulting fee from current preflight output and re-plug it in here, rather than try to re-implement the cost-model algo