Invalid country code for Poland

[Chormon]

Code for Poland should be PL instead of PO:

validator.js/src/lib/isPassportNumber.js

Line 50 in 13651ea

PO: /^[A-Z]{2}\d{7}$/, // POLAND

[tux-tn]

Thank you for reporting this issue @Chormon. PRs are welcome.

[TamannaBhasin27]

Please assign this to me. I will fix this.

[tux-tn]

@TamannaBhasin27 a PR has already been raised! Sorry

[fkashrafi]

Please assign it to me.