Update sql/moz-fx-data-shared-prod/accounts_backend_derived/monitoring_db_counts_v1/metadata.yaml

Co-authored-by: Sean Rose <1994030+sean-rose@users.noreply.github.com>

sql/moz-fx-data-shared-prod/accounts_backend_derived/monitoring_db_counts_v1/metadata.yaml

@@ -10,8 +10,7 @@ labels:
   owner1: wclouser@mozilla.com
 scheduling:
   dag_name: bqetl_accounts_derived
-  parameters:
-  - "as_of_date:DATE:{{ ds }}"
+  date_partition_parameter: as_of_date
 bigquery:
   time_partitioning:
     type: day