params: schedule shanghai fork on sepolia (#26662)

* params: schedule shanghai fork on sepolia

* params: u64 -> newUint64

params/config.go

@@ -50,6 +50,8 @@ var CheckpointOracles = map[common.Hash]*CheckpointOracleConfig{
 	GoerliGenesisHash:  GoerliCheckpointOracle,
 }
 
+func newUint64(val uint64) *uint64 { return &val }
+
 var (
 	MainnetTerminalTotalDifficulty, _ = new(big.Int).SetString("58_750_000_000_000_000_000_000", 0)
 
@@ -117,6 +119,7 @@ var (
 		TerminalTotalDifficulty:       big.NewInt(17_000_000_000_000_000),
 		TerminalTotalDifficultyPassed: true,
 		MergeNetsplitBlock:            big.NewInt(1735371),
+		ShanghaiTime:                  newUint64(1677557088),
 		Ethash:                        new(EthashConfig),
 	}
 

params/config_test.go

@@ -25,8 +25,6 @@ import (
 	"github.com/ethereum/go-ethereum/common/math"
 )
 
-func u64(val uint64) *uint64 { return &val }
-
 func TestCheckCompatible(t *testing.T) {
 	type test struct {
 		stored, new   *ChainConfig
@@ -95,19 +93,19 @@ func TestCheckCompatible(t *testing.T) {
 			},
 		},
 		{
-			stored:        &ChainConfig{ShanghaiTime: u64(10)},
-			new:           &ChainConfig{ShanghaiTime: u64(20)},
+			stored:        &ChainConfig{ShanghaiTime: newUint64(10)},
+			new:           &ChainConfig{ShanghaiTime: newUint64(20)},
 			headTimestamp: 9,
 			wantErr:       nil,
 		},
 		{
-			stored:        &ChainConfig{ShanghaiTime: u64(10)},
-			new:           &ChainConfig{ShanghaiTime: u64(20)},
+			stored:        &ChainConfig{ShanghaiTime: newUint64(10)},
+			new:           &ChainConfig{ShanghaiTime: newUint64(20)},
 			headTimestamp: 25,
 			wantErr: &ConfigCompatError{
 				What:         "Shanghai fork timestamp",
-				StoredTime:   u64(10),
-				NewTime:      u64(20),
+				StoredTime:   newUint64(10),
+				NewTime:      newUint64(20),
 				RewindToTime: 9,
 			},
 		},
@@ -123,7 +121,7 @@ func TestCheckCompatible(t *testing.T) {
 
 func TestConfigRules(t *testing.T) {
 	c := &ChainConfig{
-		ShanghaiTime: u64(500),
+		ShanghaiTime: newUint64(500),
 	}
 	var stamp uint64
 	if r := c.Rules(big.NewInt(0), true, stamp); r.IsShanghai {