[Feature] Keep OTA Update Manager deallocated when not in use

[hhvrc]

Pre-submission checklist

• I checked that there is no other Feature Request describing my wish.
• I checked that this feature is, in fact, not supported.
• I accept that this issue may be closed if any of the above are found to be untrue.

What should be possible that currently is not?

Make OTA Manager event based, only allocate it on timer/event/ws

Other remarks

No response