Refactor time durations (#58484)

This change uses `time.Second` in place of `1000 * time.Millisecond` and `time.Minute` in place of `60*time.Second`.

pkg/components/imguploader/webdavuploader.go

@@ -26,7 +26,7 @@ type WebdavUploader struct {
 var netTransport = &http.Transport{
 	Proxy: http.ProxyFromEnvironment,
 	Dial: (&net.Dialer{
-		Timeout: 60 * time.Second,
+		Timeout: time.Minute,
 	}).Dial,
 	TLSHandshakeTimeout: 5 * time.Second,
 }