Move back typing to phpdoc to keep backward compatibility in OCP

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

lib/public/Files/Storage.php

@@ -133,9 +133,12 @@ interface Storage extends IStorage {
 	/**
 	 * see https://www.php.net/manual/en/function.filesize.php
 	 * The result for filesize when called on a folder is required to be 0
+	 *
+	 * @param string $path
+	 * @return false|int|float
 	 * @since 6.0.0
 	 */
-	public function filesize(string $path): false|int|float;
+	public function filesize($path);
 
 	/**
 	 * check if a file can be created in $path

lib/public/Files/Storage/IStorage.php

@@ -130,9 +130,12 @@ interface IStorage {
 	/**
 	 * see https://www.php.net/manual/en/function.filesize.php
 	 * The result for filesize when called on a folder is required to be 0
+	 *
+	 * @param string $path
+	 * @return false|int|float
 	 * @since 9.0.0
 	 */
-	public function filesize(string $path): false|int|float;
+	public function filesize($path);
 
 	/**
 	 * check if a file can be created in $path