[#1606] Use slices.Clone()/bytes.Clone() where possible

gopatch:
```
@@
var from, to expression
@@
+import "bytes"
-to := make([]byte, len(from))
-copy(to, from)
+to := bytes.Clone(from)

@@
var from, to expression
@@
+import "bytes"
-to = make([]byte, len(from))
-copy(to, from)
+to = bytes.Clone(from)

@@
var from, to, typ expression
@@
+import "slices"
-to := make([]typ, len(from))
-copy(to, from)
+to := slices.Clone(from)

@@
var from, to, typ expression
@@
+import "slices"
-to = make([]typ, len(from))
-copy(to, from)
+to = slices.Clone(from)
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

pkg/services/object_manager/placement/traverser_test.go

@@ -1,6 +1,7 @@
 package placement
 
 import (
+	"slices"
 	"strconv"
 	"testing"
 
@@ -33,8 +34,7 @@ func copyVectors(v [][]netmap.NodeInfo) [][]netmap.NodeInfo {
 	vc := make([][]netmap.NodeInfo, 0, len(v))
 
 	for i := range v {
-		ns := make([]netmap.NodeInfo, len(v[i]))
-		copy(ns, v[i])
+		ns := slices.Clone(v[i])
 
 		vc = append(vc, ns)
 	}