Sepolia TheMerge configs (#4162)

* add merge to sepolia configs

* cosmetic

* remove EnabledModules from configs as they are the same as default

Author: marcindsobczak

src/Nethermind/Chains/sepolia.json

@@ -54,7 +54,8 @@
     "eip1559Transition": "0x0",
     "eip3198Transition": "0x0",
     "eip3529Transition": "0x0",
-    "eip3541Transition": "0x0"
+    "eip3541Transition": "0x0",
+    "terminalTotalDifficulty": "152D02C7E14AF6800000"
   },
   "genesis": {
     "seal": {

src/Nethermind/Nethermind.Runner/configs/sepolia.cfg

@@ -20,5 +20,18 @@
     "PivotNumber": 1301000,
     "PivotHash": "0x0f66dfd68f63261eb91253eacb7df90192c751f85204f60840ddb12ccd91227b",
     "PivotTotalDifficulty": "6921232492055148"
+  },
+  "JsonRpc": {
+    "Enabled": true,
+    "Timeout": 20000,
+    "Host": "127.0.0.1",
+    "Port": 8545,
+    "AdditionalRpcUrls": [
+      "http://localhost:8551|http;ws|net;eth;subscribe;engine;web3;client"
+    ]
+  },
+  "Merge": {
+    "Enabled": true,
+    "TerminalTotalDifficulty": "100000000000000000000000"
   }
 }

src/Nethermind/Nethermind.Runner/configs/sepolia_archive.cfg

@@ -11,5 +11,18 @@
   },
   "Metrics": {
     "NodeName": "Sepolia"
+  },
+  "JsonRpc": {
+    "Enabled": true,
+    "Timeout": 20000,
+    "Host": "127.0.0.1",
+    "Port": 8545,
+    "AdditionalRpcUrls": [
+      "http://localhost:8551|http;ws|net;eth;subscribe;engine;web3;client"
+    ]
+  },
+  "Merge": {
+    "Enabled": true,
+    "TerminalTotalDifficulty": "100000000000000000000000"
   }
 }