chore: bump create-eth 2.0.15 -> 2.0.18

Author: rin-st

README.md

@@ -56,7 +56,7 @@ Before you begin, you need to install the following tools:
 Then download the challenge to your computer and install dependencies by running:
 
 ```sh
-npx create-eth@2.0.15 -e challenge-tokenization challenge-tokenization
+npx create-eth@2.0.18 -e challenge-tokenization challenge-tokenization
 ```
 
 > When prompted, choose your preferred Solidity framework: **Hardhat** or **Foundry**.