Refactor ESPHome camera to avoid creating tasks

[bdraco]

needs #95822 which has test coverage for this

Proposed change

Refactor ESPHome camera to avoid creating tasks

If the ESPHome device disconnects, all the futures are resolved right away to avoid waiting forever if the esp disconnected or crashed.

This makes the camera more responsive in HA. It's still a bit slow, but there is room for future improvements on the esphome side

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[home-assistant]

Hey there @OttoWinter, @jesserockz, mind taking a look at this pull request as it has been labeled with an integration (esphome) you are listed as a code owner for? Thanks!

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[bdraco]

oops, meant to open as draft

[bdraco]

I guess we can drop the timeout since on disconnect the futures all resolve now

[frenck]

Thanks, @bdraco 👍

../Frenck

[bdraco]

Thanks. this one is going to make a big difference if someone has a few cameras