CREATE2 callback validation; init code storage contracts

src/OwnableExternal.sol

@@ -23,7 +23,7 @@ abstract contract OwnableExternal is OwnableInternal, IOwnable {
     /**
      * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
      */
-    constructor(address initialOwner) {
+    function ownableConstructor(address initialOwner) internal {
         if (initialOwner == address(0)) {
             revert OwnableInvalidOwner(address(0));
         }