fix(event-bus-local): Error handling (#3575)

**What**

The error handling was applied on the emit, which always succeed. On the other hand, the `on` which calls the handler, was not handling any errors and therefore crashed the server

.changeset/weak-parrots-search.md

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+---
+"@medusajs/event-bus-local": patch
+---
+
+fix(event-bus-local): Error handling