Integrate laragraph/utils RequestParser

[mfn]

Summary

• Replaces Integrate laragraph/laravel-graphql-utils #668
• Replaces Drop support for configuration the name of the variable for the variables #734 (the former does not support this feature anymore)
• Fixes Consider laragraph/laravel-graphql-utils #663

Breaking changes

• batched queries will only work with POST requests
  This is due to RequestParser using \GraphQL\Server\Helper::parseRequestParams which includes this check
• Drop support for configuration the name of the variable for the variables
  (Replaces Drop support for configuration the name of the variable for the variables #734)
• GraphQLUploadMiddleware has been removed (RequestParser removes the requirement for it)
• Empty GraphQL queries now return a proper validated GraphQL error
• Signature changes In \Rebing\GraphQL\GraphQLController:
  • old: protected function executeQuery(string $schema, array $input): array
    new: protected function executeQuery(string $schema, OperationParams $params): array
  • old: protected function queryContext(string $query, ?array $params, string $schema)
    new: protected function queryContext(string $query, ?array $variables, string $schema)
  • old: protected function handleAutomaticPersistQueries(string $schemaName, array $input): string
    new: protected function handleAutomaticPersistQueries(string $schemaName, OperationParams $operation): string

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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