Support for Jpegli

[TheWonderfulTartiflette]

Is your feature request related to a problem? Please describe.
No

Describe the solution you'd like
Jpegli is the new JPEG encoder from Google, open source, which is very good, and that would be really good if Squoosh implemented it

Does other service/app have this feature?
I don't think so

Additional context
Squoosh is by Chrome Labs, which is by Google, so that would be a good showcase of Jpegli for Google

[surma]

Duplicate of #1408