Merge pull request #47567 from nextcloud/jtr/fix-opcache-restricted-env

fix(config): Avoid error messages for restricted opcache API

lib/private/Config.php

@@ -184,7 +184,7 @@ class Config {
 
 			// Invalidate opcache (only if the timestamp changed)
 			if (function_exists('opcache_invalidate')) {
-				opcache_invalidate($file, false);
+				@opcache_invalidate($file, false);
 			}
 
 			$filePointer = @fopen($file, 'r');