Update transfers_optimism_eth.sql (#1418)

Brief comments on the purpose of your changes:
bug in incremental block

*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/transfers/optimism/eth/transfers_optimism_eth.sql

@@ -57,7 +57,7 @@ with eth_transfers as (
         and t.success
         and r.value > 0 
         {% if is_incremental() %} -- this filter will only be applied on an incremental run 
-        and r.block_time >= (select max(tx_block_time) - interval 2 days from {{ this }}) 
+        and r.evt_block_time >= (select max(tx_block_time) - interval 2 days from {{ this }})
         {% endif %}
 )
 select * from eth_transfers order by tx_block_time