v0.5.6

• Feature: Support optional charset parameter for full UTF-8 support (utf8mb4).
  (#135 by @clue)

  $db = $factory->createLazyConnection('localhost?charset=utf8mb4');

• Feature: Improve error reporting, include MySQL URI and socket error codes in all connection errors.
  (#141 by @clue and #138 by @SimonFrings)

  For most common use cases this means that simply reporting the Exception
  message should give the most relevant details for any connection issues:

  $db->query($sql)->then(function (React\MySQL\QueryResult $result) {
      // …
  }, function (Exception $e) {
      echo 'Error:' . $e->getMessage() . PHP_EOL;
  });

• Feature: Full support for PHP 8.1 release.
  (#150 by @clue)

• Feature: Provide limited support for NO_BACKSLASH_ESCAPES SQL mode.
  (#139 by @clue)

• Update project dependencies, simplify socket usage, and improve documentation.
  (#136 and #137 by @SimonFrings)

• Improve test suite and add .gitattributes to exclude dev files from exports.
  Run tests on PHPUnit 9 and PHP 8 and clean up test suite.
  (#142 and #143 by @SimonFrings)