Add New Version of Cronos zkEVM Testnet

We deprecated our previous version of Cronos zkEVM testnet and made the deprecate request here: ethereum-lists#6052 

This PR adds a new chainID and networkID for new version of testnet.

_data/chains/eip155-240.json

@@ -0,0 +1,23 @@
+{
+  "name": "Cronos zkEVM Testnet",
+  "chain": "CronosZkEVMTestnet",
+  "rpc": ["https://testnet.zkevm.cronos.org"],
+  "faucets": ["https://zkevm.cronos.org/faucet"],
+  "nativeCurrency": {
+    "name": "Cronos zkEVM Test Coin",
+    "symbol": "zkTCRO",
+    "decimals": 18
+  },
+  "infoURL": "https://docs-zkevm.cronos.org",
+  "shortName": "zkTCRO",
+  "chainId": 240,
+  "networkId": 240,
+  "slip44": 1,
+  "explorers": [
+    {
+      "name": "Cronos zkEVM Testnet Explorer",
+      "url": "https://explorer.zkevm.cronos.org/testnet",
+      "standard": "none"
+    }
+  ]
+}