Update to new cadvisor v0.48.1

Signed-off-by: Davanum Srinivas <davanum@gmail.com>

vendor/github.com/google/cadvisor/machine/info.go

@@ -17,7 +17,7 @@ package machine
 import (
 	"bytes"
 	"flag"
-	"io/ioutil"
+	"os"
 	"path/filepath"
 	"strings"
 	"time"
@@ -45,7 +45,7 @@ func getInfoFromFiles(filePaths string) string {
 		return ""
 	}
 	for _, file := range strings.Split(filePaths, ",") {
-		id, err := ioutil.ReadFile(file)
+		id, err := os.ReadFile(file)
 		if err == nil {
 			return strings.TrimSpace(string(id))
 		}
@@ -60,7 +60,7 @@ func Info(sysFs sysfs.SysFs, fsInfo fs.FsInfo, inHostNamespace bool) (*info.Mach
 		rootFs = "/rootfs"
 	}
 
-	cpuinfo, err := ioutil.ReadFile(filepath.Join(rootFs, "/proc/cpuinfo"))
+	cpuinfo, err := os.ReadFile(filepath.Join(rootFs, "/proc/cpuinfo"))
 	if err != nil {
 		return nil, err
 	}