fix deprecated warning, fixxes #4926

Merge request studip/studip!3697

lib/models/OpenGraphURL.php

@@ -170,7 +170,7 @@ class OpenGraphURL extends SimpleORMap
             }
 
             $context = get_default_http_stream_context($this['url']);
-            stream_context_set_option($context, [
+            stream_context_set_options($context, [
                 'http' => [
                     'method' => 'GET',
                     'header' => sprintf("User-Agent: Stud.IP v%s OpenGraph Parser\r\n", $GLOBALS['SOFTWARE_VERSION']),

lib/plugins/engine/PluginRepository.php

@@ -63,7 +63,7 @@ class PluginRepository
             // Set small timeout for the rare case that the repository is not
             // available
             $context = get_default_http_stream_context($url);
-            stream_context_set_option($context, ['http' => [
+            stream_context_set_options($context, ['http' => [
                 'timeout' => 5,
             ]]);
             $metadata = @file_get_contents($url, false, $context);