Promise.allSettled is not universally available

[bever1337]

The Promise.allSettled API has 95% browser adoption according to caniuse. Promise.allSettled was not publicly exposed in earlier hermes-engine releases nor did RN expose that until RN ~72. Because redux-toolkit does not require allSettled, I believe redux-toolkit could replace allSettled with all for better compat.

[aryaemami59]

Looks like this was resolved by #3917.