chore(pipeline) : Add an explicit DBT model dependency

The 'services' table has an implicit dependency to the 'structures' mart
as its constraint enforces a check on its structure_id key towards that
table.

Make sure DBT knows about it so it generates the structures first.

Referenced by dbt-labs/dbt-core#8062,
might be fixed in dbt-labs/dbt-common#163
last week but:
- not released
- not documented
- not sure the commit will actually help when I read it, needs more
  changes I suppose

pipeline/dbt/models/marts/inclusion/marts_inclusion__services.sql

@@ -1,3 +1,5 @@
+-- depends_on: {{ ref('marts_inclusion__structures') }}
+
 WITH services AS (
     SELECT * FROM {{ ref('int__union_services__enhanced') }}
 ),