Update mocha-4.json

Author: shaolin-flow

testnet/mocha-4/mocha-4.json

@@ -1,8 +1,8 @@
 {
     "chainId": "mocha-4",
     "chainName": "Celestia - Mocha Testnet",
-    "rpc": "https://rpc-mocha.pops.one",
-    "rest": "https://api-mocha.pops.one",
+    "rpc": "https://mocha.celestia.rpc.cumulo.me/",
+    "rest": "https://mocha.api.cumulo.me/",
     "explorerUrl": "https://testnet.mintscan.io/celestia-testnet/",
     "exploreTxUrl": "https://testnet.mintscan.io/celestia-testnet/txs/",
     "bech32Prefix": "celestia",