fix: 1Inch gas estimation has decimals (#953)

Author: chris13524

src/providers/one_inch.rs

@@ -627,7 +627,8 @@ impl ConversionProvider for OneInchProvider {
                 data: body.tx.data,
                 amount: body.dst_amount,
                 eip155: Some(ConvertTxEip155 {
-                    gas: (body.tx.gas as f64 * GAS_ESTIMATION_SLIPPAGE).to_string(),
+                    gas: (f64::ceil(body.tx.gas as f64 * GAS_ESTIMATION_SLIPPAGE) as usize)
+                        .to_string(),
                     gas_price: body.tx.gas_price,
                 }),
             },