md-radio: check by keyboard doesn't trigger 'input' event

[md5login]

What is affected?

Component

Description

Checking radio in a radio group via keyboard arrows should trigger 'input' and 'change' event. <md-radio> dispatches 'change' event only: code.

Reproduction

Can be observed here

Workaround

None

Is this a regression?

No or unsure. This never worked, or I haven't tried before.

Affected versions

1.1.1

Browser/OS/Node environment

Browser: Chrome/121.0.0.0 Safari/537.36 Edg/121.0.0.0
OS: Windows NT 10.0; Win64; x64

[datvm]

I can confirm using arrow key to change the Radio doesn't trigger input event.

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