Merge branch '6.4' into 7.0

* 6.4:
  not registered definitions must not be modified
  fix low deps
  [String] Fix Inflector for 'hardware'
  [Mime] Use streams instead of loading raw message generator into memory
  Bump Symfony version to 6.4.9
  Update VERSION for 6.4.8
  Update CHANGELOG for 6.4.8
  Bump Symfony version to 5.4.41
  Update VERSION for 5.4.40
  Update CONTRIBUTORS for 5.4.40
  Update CHANGELOG for 5.4.40

Author: fabpot

RawMessage.php

@@ -18,20 +18,32 @@
  */
 class RawMessage
 {
-    private iterable|string $message;
+    /** @var iterable|string|resource */
+    private $message;
     private bool $isGeneratorClosed;
 
     public function __construct(iterable|string $message)
     {
         $this->message = $message;
     }
 
+    public function __destruct()
+    {
+        if (\is_resource($this->message)) {
+            fclose($this->message);
+        }
+    }
+
     public function toString(): string
     {
         if (\is_string($this->message)) {
             return $this->message;
         }
 
+        if (\is_resource($this->message)) {
+            return stream_get_contents($this->message, -1, 0);
+        }
+
         $message = '';
         foreach ($this->message as $chunk) {
             $message .= $chunk;
@@ -52,10 +64,19 @@ public function toIterable(): iterable
             return;
         }
 
+        if (\is_resource($this->message)) {
+            rewind($this->message);
+            while ($line = fgets($this->message)) {
+                yield $line;
+            }
+
+            return;
+        }
+
         if ($this->message instanceof \Generator) {
-            $message = '';
+            $message = fopen('php://temp', 'w+');
             foreach ($this->message as $chunk) {
-                $message .= $chunk;
+                fwrite($message, $chunk);
                 yield $chunk;
             }
             $this->isGeneratorClosed = !$this->message->valid();

composer.json

@@ -28,14 +28,14 @@
         "symfony/process": "^6.4|^7.0",
         "symfony/property-access": "^6.4|^7.0",
         "symfony/property-info": "^6.4|^7.0",
-        "symfony/serializer": "^6.4|^7.0"
+        "symfony/serializer": "^6.4.3|^7.0.3"
     },
     "conflict": {
         "egulias/email-validator": "~3.0.0",
         "phpdocumentor/reflection-docblock": "<3.2.2",
         "phpdocumentor/type-resolver": "<1.4.0",
         "symfony/mailer": "<6.4",
-        "symfony/serializer": "<6.4"
+        "symfony/serializer": "<6.4.3|>7.0,<7.0.3"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\Mime\\": "" },