chore(config): json marshal chainName (#9865)

As the other fields are json marshaled into lowerUpper case, we should
use the same style.

---------

Signed-off-by: jsvisa <[email protected]>

Author: jsvisa

erigon-lib/chain/chain_config.go

@@ -32,8 +32,8 @@ import (
 // that any network, identified by its genesis block, can have its own
 // set of configuration options.
 type Config struct {
-	ChainName string
-	ChainID   *big.Int `json:"chainId"` // chainId identifies the current chain and is used for replay protection
+	ChainName string   `json:"chainName"` // chain name, eg: mainnet, sepolia, bor-mainnet
+	ChainID   *big.Int `json:"chainId"`   // chainId identifies the current chain and is used for replay protection
 
 	Consensus ConsensusName `json:"consensus,omitempty"` // aura, ethash or clique
 

params/chainspecs/amoy.json

@@ -1,5 +1,5 @@
 {
-    "ChainName": "amoy",
+    "chainName": "amoy",
     "chainId": 80002,
     "consensus": "bor",
     "homesteadBlock": 0,

params/chainspecs/bor-devnet.json

@@ -1,5 +1,5 @@
 {
-  "ChainName": "bor-devnet",
+  "chainName": "bor-devnet",
   "chainId": 1337,
   "consensus": "bor",
   "homesteadBlock": 0,

params/chainspecs/bor-mainnet.json

@@ -1,5 +1,5 @@
 {
-  "ChainName": "bor-mainnet",
+  "chainName": "bor-mainnet",
   "chainId": 137,
   "consensus": "bor",
   "homesteadBlock": 0,

params/chainspecs/chiado.json

@@ -1,5 +1,5 @@
 {
-  "ChainName": "chiado",
+  "chainName": "chiado",
   "chainId": 10200,
   "consensus": "aura",
   "homesteadBlock": 0,

params/chainspecs/gnosis.json

@@ -1,5 +1,5 @@
 {
-  "ChainName": "gnosis",
+  "chainName": "gnosis",
   "chainId": 100,
   "consensus": "aura",
   "homesteadBlock": 0,

params/chainspecs/goerli.json

@@ -1,5 +1,5 @@
 {
-  "ChainName": "goerli",
+  "chainName": "goerli",
   "chainId": 5,
   "consensus": "clique",
   "homesteadBlock": 0,

params/chainspecs/mainnet.json

@@ -1,5 +1,5 @@
 {
-  "ChainName": "mainnet",
+  "chainName": "mainnet",
   "chainId": 1,
   "consensus": "ethash",
   "homesteadBlock": 1150000,

params/chainspecs/mumbai.json

@@ -1,5 +1,5 @@
 {
-  "ChainName": "mumbai",
+  "chainName": "mumbai",
   "chainId": 80001,
   "consensus": "bor",
   "homesteadBlock": 0,

params/chainspecs/sepolia.json

@@ -1,5 +1,5 @@
 {
-  "ChainName": "sepolia",
+  "chainName": "sepolia",
   "chainId": 11155111,
   "consensus": "ethash",
   "homesteadBlock": 0,