Replace XmlFileLoader with YamlFileLoader for Symfony 8 compatibility

XmlFileLoader was removed in Symfony 8, causing a fatal error at kernel boot.
Converts service configuration from XML to YAML and removes related PHPStan
baseline entries.

Closes #21

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: maltehuebner

config/services.xml

@@ -0,0 +1,21 @@
+services:
+    _defaults:
+        autowire: true
+        autoconfigure: true
+        public: true
+
+    MalteHuebner\DataQueryBundle\:
+        resource: '../src/{DataQueryManager,Factory,FieldList,FinderFactory,Manager,Parameter,Query,RequestParamterList,Validator}'
+        exclude: '../src/{DependencyInjection,tests,MalteHuebnerDataQueryBundle}'
+
+    Psr\Container\ContainerInterface:
+        alias: service_container
+
+    MalteHuebner\DataQueryBundle\DataQueryManager\DataQueryManagerInterface:
+        class: MalteHuebner\DataQueryBundle\DataQueryManager\DataQueryManager
+
+    MalteHuebner\DataQueryBundle\FinderFactory\FinderFactory:
+        arguments:
+            - !service_locator
+                Doctrine\ORM\EntityManagerInterface: '@?doctrine.orm.entity_manager'
+                FOS\ElasticaBundle\Manager\RepositoryManagerInterface: '@?fos_elastica.manager'

config/services.yaml

@@ -1,15 +1,5 @@
 parameters:
 	ignoreErrors:
-		-
-			message: "#^Call to method load\\(\\) on an unknown class Symfony\\\\Component\\\\DependencyInjection\\\\Loader\\\\XmlFileLoader\\.$#"
-			count: 1
-			path: src/DependencyInjection/MalteHuebnerDataQueryExtension.php
-
-		-
-			message: "#^Instantiated class Symfony\\\\Component\\\\DependencyInjection\\\\Loader\\\\XmlFileLoader not found\\.$#"
-			count: 1
-			path: src/DependencyInjection/MalteHuebnerDataQueryExtension.php
-
 		-
 			message: "#^Deprecated in PHP 8\\.4\\: Parameter \\#3 \\$parameterName \\(string\\) is implicitly nullable via default value null\\.$#"
 			count: 1

phpstan-baseline.neon

@@ -16,7 +16,7 @@ public function load(array $configs, ContainerBuilder $container): void
         $configuration = new Configuration(false);
         $config = $this->processConfiguration($configuration, $configs);
 
-        $xmlLoader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__ . '/../../config'));
-        $xmlLoader->load('services.xml');
+        $yamlLoader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__ . '/../../config'));
+        $yamlLoader->load('services.yaml');
     }
 }