config: apply default value for Eth.Miner option in config.toml

miner/minerconfig/config.go

@@ -27,6 +27,8 @@ import (
 )
 
 // Config is the configuration parameters of mining.
+//
+//go:generate go run github.com/fjl/gencodec -type Config -formats toml -out gen_config.go
 type Config struct {
 	Etherbase             common.Address `toml:",omitempty"` // Public address for block mining rewards
 	ExtraData             hexutil.Bytes  `toml:",omitempty"` // Block extra data set by the miner
@@ -67,6 +69,7 @@ type BuilderConfig struct {
 	URL     string
 }
 
+//go:generate go run github.com/fjl/gencodec -type MevConfig -formats toml -out gen_mevconfig.go
 type MevConfig struct {
 	Enabled               bool            // Whether to enable Mev or not
 	GreedyMergeTx         bool            // Whether to merge local transactions to the bid