Update Israel flag

[waltercool]

Since https://github.com/twitter/twemoji/pull/1440 and https://github.com/twitter/twemoji/pull/1454 passed, update the Israel flag.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[Zaid-maker]

I think you made wrong change ?

[Ali-Razmjoo]

seems correct https://www.un.org/en/about-us/member-states