refactor: move from io/ioutil to io and os package (#1772)

The io/ioutil package has been deprecated as of Go 1.16, see
https://golang.org/doc/go1.16#ioutil. This commit replaces the existing
io/ioutil functions with their new definitions in io and os packages.

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>

pkg/scraper/url.go

@@ -7,7 +7,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"net/http/cookiejar"
 	"os"
@@ -92,7 +91,7 @@ func loadURL(url string, scraperConfig config, globalConfig GlobalConfig) (io.Re
 
 	defer resp.Body.Close()
 
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -140,7 +139,7 @@ func urlFromCDP(url string, driverOptions scraperDriverOptions, globalConfig Glo
 			act, cancelAct = chromedp.NewRemoteAllocator(context.Background(), remote)
 		} else {
 			// use a temporary user directory for chrome
-			dir, err := ioutil.TempDir("", "stash-chromedp")
+			dir, err := os.MkdirTemp("", "stash-chromedp")
 			if err != nil {
 				return nil, err
 			}