Tajik languange

[Abubakr7]

Hi, Dear Developers I add tajik lang. Please add our language to your library.

commit link for translated locale object

Thank you for awesome library.

[afc163]

PR is welcome~

[Abubakr7]

[yoyo837]

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request-from-a-fork