Update the GA4 data location for Views & Navigation

The location was changed as a knock on effect of improving the
code space in Google's BigQuery Studio. The code is updated via a
trigger, and the location of the outputs needed a restructure as a
result of this.

app/domain/etl/ga/views_and_navigation_service.rb

@@ -37,7 +37,7 @@ def fetch_data(date:)
     query = <<~SQL
       WITH CTE1 AS (
         SELECT *
-        FROM `govuk-content-data.dataform.GA4 dataform`
+        FROM `govuk-content-data.ga4.GA4 dataform`
         WHERE the_date = @date
       )
       SELECT