Version 13.6.0 and 13.7.0 are not compatible

[unicornonea]

Describe the bug
validator.isURL is not compatible when upgrading from 13.6.0 to 13.7.0

Examples
const validator = require('validator');
const url = 'http:/some.example.com';
const a = validator.isURL(url.toString(), {
protocols: ['http', 'https'],
require_tld: false
});
console.log(a);
// v13.6.0 a is false
// v13.7.0 a is true

[WikiRik]

Like #1862 this is probably introduced in #1833

[tux-tn]

Actually, this is not a regression, according to RFC 2396 it's a valid URL. Please check the discussion in #1751 for more information.

[renanmontebelo]

I agree this is not a regression, so I believe this issue could be closed.

BTW I find the Wikipedia entry for URL syntax very precise and clear to check for these edge cases: https://en.wikipedia.org/wiki/URL#Syntax