Ensure both onchange and oninput callbacks are executes when typing

[marconi1992]

Since this change the onChange prop gets normalized to oninput but this is overwritten if we include the onInput prop, being only triggered the last one defined.

<input onChange={onChange} onInput={onInput} />

FWIW it's impossible to prevent this prop from being overwritten because we're using it as an object key. In this case, we mimic the React behavior by combing both callbacks in only one.

Fixes #3561

[github-actions]

📊 Tachometer Benchmark Results

Summary

A summary of the benchmark results will show here once they finish.

Results

The full results of your benchmarks will show here once they finish.

_{tachometer-reporter-action v2 for Benchmarks}

[coveralls]

Coverage remained the same at 99.444% when pulling acfb16d on marconi1992:onchange-compat into 0b9a927 on preactjs:master.

[JoviDeCroock]

It looks like a lot of tests have stopped running 😅 trying to figure out how that is possible. the issue with size is fixed here #3563

[JoviDeCroock]

Apologies for the back and forth and congratulations on your first PR ❤️