estimate-gas: change to 200% (#1462)

src/providers/eth_provider/gas.rs

@@ -48,10 +48,10 @@ where
 
         let gas_used = self.estimate_gas(request, block_id).await?;
 
-        // Increase the gas used by 40% to make sure the transaction will not fail due to gas.
+        // Increase the gas used by 200% to make sure the transaction will not fail due to gas.
         // This is a temporary solution until we have a proper gas estimation.
         // Does not apply to Hive feature otherwise end2end tests will fail.
-        let gas_used = if cfg!(feature = "hive") { gas_used } else { gas_used * 140 / 100 };
+        let gas_used = if cfg!(feature = "hive") { gas_used } else { gas_used * 2 };
         Ok(U256::from(gas_used))
     }