chore(deps): update dependency phpstan/phpstan to v2.1.44 (#1888)

* chore(deps): update dependency phpstan/phpstan to v2.1.44

* Fix PHPStan errors with callable intersection return type

PHPStan 2.1.44 now parses `callable(): Type&NamedType` as
`(callable(): Type) & NamedType` instead of `callable(): (Type&NamedType)`.
Adding parentheses disambiguates the return type, which also
resolves previously suppressed errors in BuildSchema and SchemaExtender.

🤖 Generated with Claude Code

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Benedikt Franke <benedikt.franke@mll.com>

Author: renovate[bot]

composer.json

@@ -23,7 +23,7 @@
     "nyholm/psr7": "^1.5",
     "phpbench/phpbench": "^1.2",
     "phpstan/extension-installer": "^1.1",
-    "phpstan/phpstan": "2.1.43",
+    "phpstan/phpstan": "2.1.44",
     "phpstan/phpstan-phpunit": "2.0.16",
     "phpstan/phpstan-strict-rules": "2.0.10",
     "phpunit/phpunit": "^9.5 || ^10.5.21 || ^11",

src/Utils/ASTDefinitionBuilder.php

@@ -50,7 +50,7 @@
  * @phpstan-import-type InputObjectFieldConfig from InputObjectField
  * @phpstan-import-type UnnamedInputObjectFieldConfig from InputObjectField
  *
- * @phpstan-type ResolveType callable(string, Node|null): Type&NamedType
+ * @phpstan-type ResolveType callable(string, Node|null): (Type&NamedType)
  * @phpstan-type TypeConfigDecorator callable(array<string, mixed>, Node&TypeDefinitionNode, array<string, Node&TypeDefinitionNode>): array<string, mixed>
  * @phpstan-type FieldConfigDecorator callable(UnnamedFieldDefinitionConfig, FieldDefinitionNode, ObjectTypeDefinitionNode|ObjectTypeExtensionNode|InterfaceTypeDefinitionNode|InterfaceTypeExtensionNode): UnnamedFieldDefinitionConfig
  */

src/Utils/BuildSchema.php

@@ -204,7 +204,6 @@ public function buildSchema(): Schema
         $definitionBuilder = new ASTDefinitionBuilder(
             $typeDefinitionsMap,
             $typeExtensionsMap,
-            // @phpstan-ignore-next-line TODO add union type when available
             static function (string $typeName): Type {
                 throw self::unknownType($typeName);
             },

src/Utils/SchemaExtender.php

@@ -142,7 +142,6 @@ protected function doExtend(
         $this->astBuilder = new ASTDefinitionBuilder(
             $typeDefinitionMap,
             [],
-            // @phpstan-ignore-next-line no idea what is wrong here
             function (string $typeName) use ($schema): Type {
                 $existingType = $schema->getType($typeName);
                 if ($existingType === null) {