* feat(event-stream): Add block_gossip topic support
* feat(event-stream): Add block_gossip topic support
* feat(event-stream): Add block_gossip topic support
* feat: add block gossip topic support to beacon api event stream
* fix: sync_fuzz_test panic
* fix: check for nil operationNotifier before sending block gossip
The operationNotifier was not being checked for nil before being used,
which could lead to a panic if it was not initialized. This commit adds
a nil check to prevent the panic.
---------
Co-authored-by: james-prysm <90280386+james-prysm@users.noreply.github.com>