[css-paint-api] Add CanvasFilters to paint worklets

[mysteryDate]

This is already implemented by chromium (the only existent implementation of css-paint-api):

https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/modules/csspaint/paint_rendering_context_2d.idl;l=41?q=paint_rendering_context_2d.idl&sq=package:chromium&ct=os

I do not see a reason why it should not be there, as all other features of CanvasRenderingContext2D are (except for fonts).

[bfgeek]

this lgtm - I'll quickly add an issue to put it on the adgenda to add. This was likely an oversight on my part initially.

[bfgeek]

#1056