Merge branch '6.3' into 6.4

* 6.3:
  minor #53524 [Messenger] [AmazonSqs] Allow `async-aws/sqs` version 2 (smoench)
  Fix bad merge
  List CS fix in .git-blame-ignore-revs
  Fix implicitly-required parameters
  List CS fix in .git-blame-ignore-revs
  Apply php-cs-fixer fix --rules nullable_type_declaration_for_default_null_value

Author: nicolas-grekas

Button.php

@@ -81,7 +81,7 @@ public function offsetUnset(mixed $offset): void
         throw new BadMethodCallException('Buttons cannot have children.');
     }
 
-    public function setParent(FormInterface $parent = null): static
+    public function setParent(?FormInterface $parent = null): static
     {
         if (1 > \func_num_args()) {
             trigger_deprecation('symfony/form', '6.2', 'Calling "%s()" without any arguments is deprecated, pass null explicitly instead.', __METHOD__);
@@ -107,7 +107,7 @@ public function getParent(): ?FormInterface
      *
      * @throws BadMethodCallException
      */
-    public function add(string|FormInterface $child, string $type = null, array $options = []): static
+    public function add(string|FormInterface $child, ?string $type = null, array $options = []): static
     {
         throw new BadMethodCallException('Buttons cannot have children.');
     }
@@ -338,7 +338,7 @@ public function isRoot(): bool
         return null === $this->parent;
     }
 
-    public function createView(FormView $parent = null): FormView
+    public function createView(?FormView $parent = null): FormView
     {
         if (null === $parent && $this->parent) {
             $parent = $this->parent->createView();

ButtonBuilder.php

@@ -56,7 +56,7 @@ public function __construct(?string $name, array $options = [])
      *
      * @throws BadMethodCallException
      */
-    public function add(string|FormBuilderInterface $child, string $type = null, array $options = []): static
+    public function add(string|FormBuilderInterface $child, ?string $type = null, array $options = []): static
     {
         throw new BadMethodCallException('Buttons cannot have children.');
     }
@@ -68,7 +68,7 @@ public function add(string|FormBuilderInterface $child, string $type = null, arr
      *
      * @throws BadMethodCallException
      */
-    public function create(string $name, string $type = null, array $options = []): FormBuilderInterface
+    public function create(string $name, ?string $type = null, array $options = []): FormBuilderInterface
     {
         throw new BadMethodCallException('Buttons cannot have children.');
     }
@@ -220,7 +220,7 @@ public function setAttributes(array $attributes): static
      *
      * @throws BadMethodCallException
      */
-    public function setDataMapper(DataMapperInterface $dataMapper = null): static
+    public function setDataMapper(?DataMapperInterface $dataMapper = null): static
     {
         if (1 > \func_num_args()) {
             trigger_deprecation('symfony/form', '6.2', 'Calling "%s()" without any arguments is deprecated, pass null explicitly instead.', __METHOD__);