rx.cached_var does not find dependencies inside a list comprehension

[masenf]

Describe the bug
Using a cached var with a list comprehension does not get updated when the dependent vars change because ComputedVar.deps does not correctly identify dependencies inside a list comprehension.

To Reproduce

class State(rx.State):
    _selected_images: set[str] = set()

    def toggle_image(self, image: str):
        if image in self._selected_images:
            self._selected_images.remove(image)
        else:
            self._selected_images.add(image)

    @rx.cached_var
    def image_infos(self) -> list[ImageInfo]:
        breakpoint()
        return [
            ImageInfo(image=image, selected=image in self._selected_images)
            for image in IMAGES
        ]

👆 image_infos never gets updated 😢

[masenf]

WiP hacking: https://github.com/reflex-dev/reflex/tree/masenf/cached-var-comprehensions