fix: Remove use CurlHandle statement

PHP is warning that "The use statement with non-compound name 'CurlHandle' has no effect".
This makes the web updater fail to update when the warning is propagated.

Signed-off-by: Corentin Noël <corentin.noel@collabora.com>

Author: tintou

index.php

@@ -28,7 +28,6 @@ class LogException extends \Exception {
 
 
 use Closure;
-use CurlHandle;
 
 class Updater {
 	/** @var int */

lib/Updater.php

@@ -10,7 +10,6 @@
 namespace NC\Updater;
 
 use Closure;
-use CurlHandle;
 
 class Updater {
 	/** @var int */
@@ -674,7 +673,7 @@ private function getDownloadURLs(): array {
 
 	}
 
-	private function getCurl(string $url): CurlHandle {
+	private function getCurl(string $url): \CurlHandle {
 		$ch = curl_init($url);
 		if ($ch === false) {
 			throw new \Exception('Fail to open cUrl handler');
@@ -753,7 +752,7 @@ private function isAbleToDecompress(string $ext): bool {
 		return $ext === 'zip' && extension_loaded($ext);
 	}
 
-	private function downloadProgressCallback(CurlHandle $resource, int $download_size, int $downloaded): void {
+	private function downloadProgressCallback(\CurlHandle $resource, int $download_size, int $downloaded): void {
 		if ($download_size !== 0) {
 			$progress = (int)round($downloaded * 100 / $download_size);
 			if ($progress > $this->previousProgress) {