Parallel requests

/**
 * Makes parallel HTTP requests to the given array of URLs, with a constraint on the number
 * of simultaneous requests allowed. Once all requests are completed, calls the provided
 * callback function with an array of text responses in the same order as the input URLs.
 *
 * @param {string[]} urls - An array of URLs to make HTTP requests to.
 * @param {number} limit - The maximum number of simultaneous HTTP requests allowed.
 * @param {function(string[]): void} callback - The callback function to be called with an
 * array of text responses once all requests are completed.
 */
function parallelHttpRequests(urls, limit, callback) {
  // TODO: Implement the function
}