add baseSepolia in hardhat.config (#696)

Co-authored-by: Shiv Bhonde <[email protected]>

Author: kmjones1979

packages/hardhat/hardhat.config.ts

@@ -106,6 +106,10 @@ const config: HardhatUserConfig = {
       url: "https://goerli.base.org",
       accounts: [deployerPrivateKey],
     },
+    baseSepolia: {
+      url: "https://sepolia.base.org",
+      accounts: [deployerPrivateKey],
+    },
     scrollSepolia: {
       url: "https://sepolia-rpc.scroll.io",
       accounts: [deployerPrivateKey],