fix incremental code

[antonyip]

Description

Please include a summary of changes and related issue (if any). Fixes: https://github.com/MetricsDAO/harmony_dbt/issues/98

Tests

• [x] Please provide evidence of your successful dbt run / dbt test here

  
  root@5238771c6afc:/harmony# dbt run -s stg_blocks --full-refresh
  Running with dbt=0.21.1
  Found 58 models, 325 tests, 0 snapshots, 0 analyses, 180 macros, 0 operations, 9 seed files, 6 sources, 0 exposures

00:23:31 | Concurrency: 4 threads (target='dev') 00:23:31 | 00:23:31 | 1 of 1 START incremental model DEV.stg_blocks........................ [RUN] 00:24:51 | 1 of 1 OK created incremental model DEV.stg_blocks................... [SUCCESS 1 in 79.35s] 00:24:51 | 00:24:51 | Finished running 1 incremental model in 87.58s.

Completed successfully

- [x] Any comparison between `prod` and `dev` for any schema change

# Checklist
- [x] Follow [dbt style guide](https://github.com/dbt-labs/corp/blob/main/dbt_style_guide.md)
- [x] Tag the person(s) responsible for reviewing proposed changes
- [x] Notes to deployment, if a `full-refresh` is needed for any table
full-refresh needs to be done for stg_blocks and stg_txs

[antonyip]

yes, a full refresh will be done.