feat: add vechain configs

Author: mohitkh7

hardhat.config.ts

@@ -451,6 +451,30 @@ const config: HardhatUserConfig = {
         `${PLACEHOLDER_KEY}`,
         `${PRIVATE_KEY_FOR_BATCHER_CONTRACT_DEPLOYMENT}`
       ]
+    },
+    vechain_testnet: {
+      url: 'https://testnet.vechain.org',
+      accounts: [
+        `${PRIVATE_KEY_FOR_V4_CONTRACT_DEPLOYMENT}`,
+        `${PLACEHOLDER_KEY}`,
+        `${PRIVATE_KEY_FOR_BATCHER_CONTRACT_DEPLOYMENT}`
+      ],
+      gas: 'auto',
+      gasPrice: 'auto',
+      gasMultiplier: 1,
+      timeout: 20000
+    },
+    vechain_mainnet: {
+      url: 'https://mainnet.vechain.org',
+      accounts: [
+        `${PRIVATE_KEY_FOR_V4_CONTRACT_DEPLOYMENT}`,
+        `${PLACEHOLDER_KEY}`,
+        `${PRIVATE_KEY_FOR_BATCHER_CONTRACT_DEPLOYMENT}`
+      ],
+      gas: 'auto',
+      gasPrice: 'auto',
+      gasMultiplier: 1,
+      timeout: 20000
     }
   },
   gasReporter: {