Fix linter errors

resolver/resolver-https.go

@@ -5,7 +5,7 @@ import (
 	"crypto/tls"
 	"encoding/base64"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/url"
 	"time"
@@ -95,7 +95,7 @@ func (hr *HTTPSResolver) Query(ctx context.Context, q *Query) (*RRCache, error)
 	}()
 
 	// Try to read the result
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}