update iPad 9th generation

This will never, ever happen.

Your base model 2021, 10.2 inch screen, 9th gen iPad will never be able to use an animated animoji for FaceTime.

Sorry.

Your base model iPad lacks the front facing true depth camera lens hardware that is needed to use the animated Animoji/memoji feature.

Animojis only work with Apple mobile devices that are equipped with a True Depth Face ID front facing camera lens hardware, like more expensive iPhone models and iPad Pro models.

Sorry.

Huh?

A 2021, 9th gen iPad IS a current model iPad, but it is Apple's base model, “budget-conscious” model iPad.

A 9th gen iPad is one of Apple's newest and least expensive model iPad.

Tap on this link below to compare all Apple iPad models.

iPad - Compare Models - Apple

ONLY the much more expensive iPad Pro models have the necessary front facing, FaceID, True Depth camera hardware to use the Memoji/Animoji ( animated Memoji ) feature.