added support for array args with more than one item

[gregdrizz]

Description of the Change

Added support for array arguments containing multiple items. Previously, when parsing arrays with more than one item, only the first key-value pair of each item was retained in the output. This resulted in incomplete or incorrect query generation, which limited functionality and caused unexpected behavior.

Benefits

This change significantly improves convenience and usability when working with array arguments in functions. Developers can now work seamlessly with arrays that have multiple items, ensuring correct query generation and reducing the potential for errors.

For example, with this fix, array arguments like the following:

media: [
  {
    originalSource: 'https://example.com/image.jpg',
    mediaContentType: literal`IMAGE`,
  },
  {
    originalSource: 'https://example.com/image_2.jpg',
    mediaContentType: literal`IMAGE`,
  },
]

will now produce the correct query output.

The bug

Previously, the library failed to handle arrays with multiple items. When parsing such queries, only the first key-value pair from each object in the array was retained, leading to incomplete results.

Example:
Input Query:

const query = {
  operation: {
    name: 'productCreate',
    args: {
      media: [
        {
          originalSource: 'https://example.com/image.jpg',
          mediaContentType: literal`IMAGE`,
        },
        {
          originalSource: 'https://example.com/image_2.jpg',
          mediaContentType: literal`IMAGE`,
        },
      ],
    },
    fields: [
      {
        product: {
          fields: ['createdAt', 'title'],
        },
        userErrors: {
          fields: ['field', 'message'],
        },
      },
    ],
  },
};

Expected Result:

mutation {
  productCreate(media: [
    { originalSource: "https://example.com/image.jpg", mediaContentType: IMAGE },
    { originalSource: "https://example.com/image_2.jpg", mediaContentType: IMAGE }
  ]) {
    product {
      createdAt
      title
    }
  }
}

Actual Result before:

mutation {
  productCreate(media: [
    { originalSource: "https://example.com/image.jpg" },
    { originalSource: "https://example.com/image_2.jpg" }
  ]) {
    product {
      createdAt
      title
    }
  }
}

[khaosdoctor]

Thanks a lot for the contribution! Merging it now