Propagate events errors in v0.52 icacontroller

[damiannolan]

This error should be propagated and returned from this func.

The likelihood of these errors surfacing from EventManager are pretty much zero, but at some point in a future far away it may be possible for it to error - given a different impl of event service.

None the less, its good practise to actually return the errors and not panic and rely on grpc recovery interceptor

Originally posted by @damiannolan in #7587 (comment)

[Sruthi2357]

@damiannolan Can I work on this?

[damiannolan]

Hey, this is already implemented in #7261 which we are working towards merging asap. I will close this issue