Hyphen before a dot is a valid url

[lskiva-r7]

Describe the bug
The following url is valid:
my-.url.com

But it returns false

> validator.isURL('my-.url.com')
false
> validator.isURL('my.url.com')
true

It does accept - it just has an issue if it's right before the period:

> validator.isURL('m-y.url.com')
true

Additional context
Validator.js version: 13.7
Node.js version: v16.14.0
OS platform: macOS

[WikiRik]

Interestingly Gmail on Android also does not recognize that link. Both my.url.com and m-y.url.com are recognized. So it's not only this library that handles it this way. We'll have to check the specification to determine if it's a valid URL