Check the latest GitHub release and use local hints for updating the components

[arrdalan]

Previously, non-server components such as the camera_hub checked the server version in order to determine when to update. That allows a malicious server to keep these components outdated. Instead, we will now have all the components check the latest GitHub release to decide if they should update or not.

These checks, however, are not frequent, e.g., every 30 minutes in the image we build with our deploy tool. This could create a large downtime for the camera as there can be version mismatch with the server for up to 30 minutes every time we update the server. To address this, when the client_lib http code (used in the camera_hub) sees a version mismatch with the server, it provides a hint to the updater. The updater checks for the hint more frequently, e.g., every minute. If it sees a hint, it checks the latest GitHub release and updates if needed.

This PR also updates the deploy tool accordingly.

[jkaczman]

Thanks for the PR!

I would suggest making the server use the hint write/check as well.
There's also merge conflicts.

Otherwise, looks good!

[arrdalan]

Good suggestion. I added the use of local hints for the server as well.

I fixed the conflict too.