Fix recent phptan errors

[mfn]

Summary

Fixes the ones from https://github.com/rebing/graphql-laravel/actions/runs/11207964245/job/31150947788

Error: Ignored error pattern #^Property GraphQL\\Type\\Definition\\ObjectType\:\:\$config \(array\{name\?\: string\|null, description\?\: string\|null, resolveField\?\: \(callable\(mixed, array\<string, mixed\>, mixed, GraphQL\\Type\\Definition\\ResolveInfo\)\: mixed\)\|null, fields\: \(callable\(\)\: iterable\)\|iterable, interfaces\?\: \(callable\(\)\: iterable\<callable\(\)\: GraphQL\\Type\\Definition\\InterfaceType\|GraphQL\\Type\\Definition\\InterfaceType\>\)\|iterable\<\(callable\(\)\: GraphQL\\Type\\Definition\\InterfaceType\)\|GraphQL\\Type\\Definition\\InterfaceType\>, isTypeOf\?\: \(callable\(mixed, mixed, GraphQL\\Type\\Definition\\ResolveInfo\)\: \(bool\|GraphQL\\Deferred\|null\)\)\|null, astNode\?\: GraphQL\\Language\\AST\\ObjectTypeDefinitionNode\|null, extensionASTNodes\?\: array\<int, GraphQL\\Language\\AST\\ObjectTypeExtensionNode\>\|null\}\) does not accept non\-empty\-array\<string, \(callable\(\)\: iterable\)\|\(callable\(mixed, array\<string, mixed\>, mixed, GraphQL\\Type\\Definition\\ResolveInfo\)\: mixed\)\|\(callable\(mixed, mixed, GraphQL\\Type\\Definition\\ResolveInfo\)\: \(bool\|GraphQL\\Deferred\|null\)\)\|GraphQL\\Language\\AST\\ObjectTypeDefinitionNode\|iterable\|string\|null\>\.$# in path /home/runner/work/graphql-laravel/graphql-laravel/src/GraphQL.php was not matched in reported errors.
Error: Property GraphQL\Type\Definition\ObjectType::$config (array{name?: string|null, description?: string|null, resolveField?: (callable(mixed, array<string, mixed>, mixed, GraphQL\Type\Definition\ResolveInfo): mixed)|null, fields: (callable(): iterable)|iterable, interfaces?: (callable(): iterable<callable(): GraphQL\Type\Definition\InterfaceType|GraphQL\Type\Definition\InterfaceType>)|iterable<(callable(): GraphQL\Type\Definition\InterfaceType)|GraphQL\Type\Definition\InterfaceType>, isTypeOf?: (callable(mixed, mixed, GraphQL\Type\Definition\ResolveInfo): (bool|GraphQL\Deferred|null))|null, astNode?: GraphQL\Language\AST\ObjectTypeDefinitionNode|null, extensionASTNodes?: array<int, GraphQL\Language\AST\ObjectTypeExtensionNode>|null}) does not accept array{name?: string|null, description?: string|null, resolveField?: (callable(mixed, array<string, mixed>, mixed, GraphQL\Type\Definition\ResolveInfo): mixed)|string|null, fields: (callable(): iterable)|iterable|string, interfaces?: (callable(): iterable<callable(): GraphQL\Type\Definition\InterfaceType|GraphQL\Type\Definition\InterfaceType>)|iterable<(callable(): GraphQL\Type\Definition\InterfaceType)|GraphQL\Type\Definition\InterfaceType>|string, isTypeOf?: (callable(mixed, mixed, GraphQL\Type\Definition\ResolveInfo): (bool|GraphQL\Deferred|null))|string|null, astNode?: GraphQL\Language\AST\ObjectTypeDefinitionNode|string|null, extensionASTNodes?: array<int, GraphQL\Language\AST\ObjectTypeExtensionNode>|string|null}.
Error: Parameter #2 $errors of class GraphQL\Executor\ExecutionResult constructor expects list<GraphQL\Error\Error>, non-empty-array<int, GraphQL\Error\Error> given.

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Type of change:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Misc. change (internal, infrastructure, maintenance, etc.)

Checklist:

• Existing tests have been adapted and/or new tests have been added
• Add a CHANGELOG.md entry
• Update the README.md
• Code style has been fixed via composer fix-style