Update magiceden_events.sql (#1282)

Brief comments on the purpose of your changes:


*For Dune Engine V2*
I've checked that:

* [ ] I tested the query on dune.com after compiling the model with dbt compile (compiled queries are written to the target directory)
* [ ] I used "refs" to reference other models in this repo and "sources" to reference raw or decoded tables 
* [ ] if adding a new model, I added a test
* [ ] the filename is unique and ends with .sql
* [ ] each sql file is a select statement and has only one view, table or function defined  
* [ ] column names are `lowercase_snake_cased`

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spellbook/models/magiceden/magiceden_events.sql

@@ -1,5 +1,5 @@
 {{ config(
-        alias ='transactions',
+        alias ='events',
         materialized ='incremental',
         file_format ='delta',
         incremental_strategy='merge',