p2p/simulations/adapters: use maps.Clone (ethereum#29626)

Author: AaronChen0

p2p/simulations/adapters/inproc.go

@@ -20,6 +20,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"maps"
 	"math"
 	"net"
 	"sync"
@@ -215,10 +216,7 @@ func (sn *SimNode) ServeRPC(conn *websocket.Conn) error {
 // simulation_snapshot RPC method
 func (sn *SimNode) Snapshots() (map[string][]byte, error) {
 	sn.lock.RLock()
-	services := make(map[string]node.Lifecycle, len(sn.running))
-	for name, service := range sn.running {
-		services[name] = service
-	}
+	services := maps.Clone(sn.running)
 	sn.lock.RUnlock()
 	if len(services) == 0 {
 		return nil, errors.New("no running services")
@@ -315,11 +313,7 @@ func (sn *SimNode) Services() []node.Lifecycle {
 func (sn *SimNode) ServiceMap() map[string]node.Lifecycle {
 	sn.lock.RLock()
 	defer sn.lock.RUnlock()
-	services := make(map[string]node.Lifecycle, len(sn.running))
-	for name, service := range sn.running {
-		services[name] = service
-	}
-	return services
+	return maps.Clone(sn.running)
 }
 
 // Server returns the underlying p2p.Server