fix: connect authorship EventHandler to Staking for reward point distribution

Without this, block authors are never reported to the staking pallet,
resulting in zero reward points and no era payouts.

pezkuwi/runtime/pezkuwichain/src/lib.rs

@@ -413,7 +413,7 @@ impl pezpallet_timestamp::Config for Runtime {
 
 impl pezpallet_authorship::Config for Runtime {
 	type FindAuthor = pezpallet_session::FindAccountFromAuthorIndex<Self, Babe>;
-	type EventHandler = ();
+	type EventHandler = Staking;
 }
 
 impl_opaque_keys! {