Fix pip typo

Author: clausherther

.circleci/config.yml

@@ -31,7 +31,8 @@ jobs:
           command: |
             python3 -m venv venv
             . venv/bin/activate
-            pip install "dbt-postgres==$DBT_VERSION" "dbt-bigquery==$DBT_VERSION" "dbt-snowflake==$DBT_VERSION" "pip install dbt-duckdb==$DBT_VERSION"
+            pip install "dbt-postgres==$DBT_VERSION" "dbt-bigquery==$DBT_VERSION" "dbt-snowflake==$DBT_VERSION"
+            pip install "dbt-duckdb==$DBT_VERSION"
 
       - run: &dbt-deps
           name: Install dbt dependencies