Utils.run_exclusive causes GenServer error

[Neylix]

Describe the problem you discovered

When a node is not synchronized it starts a repair process.
This process is started with NetworkChain.asynchronous_resync which calls Utils.run_exclusive. But this last one create a task using Task.async_nolink which means that the process that created this task will receive an event {ref, res} and {:DOWN, ...}.

Since this function may be called from GenServer if they don't handle the event they'll have a function clause error.
Example from Node responsivness and Node Renewal Scheduler:

Describe the solution you'd like

The Utils.run_exclusive should not start an async task that return event to the caller but a "fire and forget" task using Task.Supervisor.start_child

Epic

No response