Update FW version display after FW update

[noacoohen]

Tracked by LRS-686

[Nir-Az]

@maloel can you help reviewing this PR?
Thanks

[maloel]

This PR will work as long as the user holds the context from which the device was created.

E.g.:

ctx = context()
ctx.set_devices_changed_callback( on_devices_changed )
device = context().query_devices()[0]
device.hardware_reset()

This will not call on_devices_changed because it's on another context!!!

This may be OK: if we can agree that, for the D457 notifications to work, the user has to keep holding the context, then the PR is acceptable.

To make it so that the notification is sent to ALL contexts that may be listening, more extensive changes must be made: we need to take the invocation up to the level of the device-watcher and likely add an API to device_info.

@Nir-Az please see if the above is acceptable or whether we want to make more extensive changes.

[Nir-Az]

This PR will work as long as the user holds the context from which the device was created.

E.g.:

ctx = context()
ctx.set_devices_changed_callback( on_devices_changed )
device = context().query_devices()[0]
device.hardware_reset()

This will not call on_devices_changed because it's on another context!!!

This may be OK: if we can agree that, for the D457 notifications to work, the user has to keep holding the context, then the PR is acceptable.

To make it so that the notification is sent to ALL contexts that may be listening, more extensive changes must be made: we need to take the invocation up to the level of the device-watcher and likely add an API to device_info.

@Nir-Az please see if the above is acceptable or whether we want to make more extensive changes.

I'm OK with that,
It's much better than what we have today, and this is an internal enhancement so for now it's better to avoid massive changes IMO

[maloel]

Notice there's an error in the CI