fix: eventName not properly set in createWatchContractEvent (#4400)

* Fix functionName instead of eventName

* chore: changeset

---------

Co-authored-by: Tom Meagher <tom@meagher.co>

Author: AzzouQ

.changeset/perfect-tigers-raise.md

@@ -0,0 +1,5 @@
+---
+"@wagmi/core": patch
+---
+
+Fixed `createWatchContractEvent` internal wiring, where `eventName` was incorrectly `functionName`.

packages/core/src/actions/codegen/createWatchContractEvent.ts

@@ -71,7 +71,7 @@ export function createWatchContractEvent<
         configChainId
       return watchContractEvent(config, {
         ...(parameters as any),
-        ...(c.eventName ? { functionName: c.eventName } : {}),
+        ...(c.eventName ? { eventName: c.eventName } : {}),
         address: c.address?.[chainId],
         abi: c.abi,
       })
@@ -81,7 +81,7 @@ export function createWatchContractEvent<
     return watchContractEvent(config, {
       ...(parameters as any),
       ...(c.address ? { address: c.address } : {}),
-      ...(c.eventName ? { functionName: c.eventName } : {}),
+      ...(c.eventName ? { eventName: c.eventName } : {}),
       abi: c.abi,
     })
   }