More rector fixes (#1985)

Author: DerManoMann

src/Serializer.php

@@ -90,7 +90,7 @@ public function deserializeFile(string $filename, string $format = 'json', strin
         $contents = file_get_contents($filename);
 
         $ext = pathinfo($filename, PATHINFO_EXTENSION);
-        if ('yaml' === $format || in_array($ext, ['yml', 'yaml'])) {
+        if ('yaml' === $format || in_array($ext, ['yml', 'yaml'], true)) {
             $contents = json_encode(Yaml::parse($contents));
         }
 

src/Type/LegacyTypeResolver.php

@@ -72,7 +72,7 @@ protected function doAugment(Analysis $analysis, OA\Schema $schema, \Reflector $
 
     protected function normaliseTypeResult(?string $explicitType = null, ?array $explicitDetails = null, array $types = [], ?string $name = null, ?bool $nullable = null, ?bool $isArray = null, bool $unsupported = false, ?Context $context = null): \stdClass
     {
-        $types = array_filter($types, fn (string $t): bool => !in_array($t, ['null', '']));
+        $types = array_filter($types, fn (string $t): bool => !in_array($t, ['null', ''], true));
 
         if ($context) {
             foreach ($types as $ii => $type) {