UK (GB) Number validation is failing

[rparsh]

Bug Summary

Describe the issue encountered concisely but informative.

IsValidNumber throwing error for UK valid phone number. There seems to be an issue with the regex.

Can we update the regex based on https://stackoverflow.com/a/11518538

https://regex101.com/r/IMfzkx/1

Valid Phone number like +442071234567 showing invalid

Code Snippet / Configuration (if applicable)

Include any relevant code snippets or configuration related to the bug.

isValidPhoneNumber('2071234567', 'GB')