Update Extensions.swift

fix

Author: kocherovets

Sources/web3swift/EthereumAddress/Extensions.swift

@@ -10,7 +10,8 @@ import Foundation
 
 extension Array where Element == UInt8 {
     init(hex: String) {
-        self.init(reserveCapacity: hex.unicodeScalars.lazy.underestimatedCount)
+        self.init()
+        self.reserveCapacity(hex.unicodeScalars.lazy.underestimatedCount)
         var buffer: UInt8?
         var skip = hex.hasPrefix("0x") ? 2 : 0
         for char in hex.unicodeScalars.lazy {