Simplify error handling for `dns_get_record()`

[aivchen]

[SebLevDev]

We have the same issue on running test with fake domain eg: example.com

TypeError: Egulias\EmailValidator\Validation\DNSRecords::__construct(): Argument #1 ($records) must be of type array, bool given, called in /www/vendor/egulias/email-validator/src/Validation/DNSGetRecordWrapper.php on line 24

/www/vendor/egulias/email-validator/src/Validation/DNSRecords.php:11
/www/vendor/egulias/email-validator/src/Validation/DNSGetRecordWrapper.php:24
/www/vendor/egulias/email-validator/src/Validation/DNSCheckValidation.php:148
/www/vendor/egulias/email-validator/src/Validation/DNSCheckValidation.php:130
/www/vendor/egulias/email-validator/src/Validation/DNSCheckValidation.php:97
/www/vendor/egulias/email-validator/src/Validation/MultipleValidationWithAnd.php:54
/www/vendor/egulias/email-validator/src/EmailValidator.php:37