Update saved query documentation for MetricFlow release (#4469)

## What are you changing in this pull request and why?
With the release of MetricFlow 0.203.0 and dbt-metricflow 0.4.0 we now
have support for saved queries.

This commit removes the "coming soon" marker and updates the spec to
match the final release version.

## Checklist
- [x] Review the [Content style
guide](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/content-style-guide.md)
and [About
versioning](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#adding-a-new-version)
so my content adheres to these guidelines.
- [x] Add a checklist item for anything that needs to happen before this
PR is merged, such as "needs technical review" or "change base branch."

website/docs/docs/build/saved-queries.md

@@ -6,10 +6,6 @@ sidebar_label: "Saved queries"
 tags: [Metrics, Semantic Layer]
 ---
 
-:::info Saved queries coming soon
-Saved queries isn't currently available in MetricFlow but support is coming soon.
-:::
-
 Saved queries are a way to save commonly used queries in MetricFlow. You can group metrics, dimensions, and filters that are logically related into a saved query. 
 
 To define a saved query, refer to the following specification:
@@ -18,24 +14,23 @@ To define a saved query, refer to the following specification:
 | --------- | ----------- | ---- |
 | `name` | The name of the metric. | Required |
 | `description` | The description of the metric. | Optional |
-| `metrics` | The metrics included in the saved query. | Required |
-| `group_bys` | The value displayed in downstream tools. | Required |
-| `where` | Filter applied to the query. | Optional |
+| `query_params` | The query parameters for the saved query: `metrics`, `group_by`, and `where`. | Required |
 
 The following is an example of a saved query:
 
 ```yaml
 saved_query:
   name: p0_booking
   description: Booking-related metrics that are of the highest priority.
-  metrics:
-    - bookings
-    - instant_bookings
-  group_bys:
-    - TimeDimension('metric_time', 'day')
-    - Dimension('listing__capacity_latest')
-  where:
-    - "{{ Dimension('listing__capacity_latest') }} > 3"
+  query_params:
+    metrics:
+      - bookings
+      - instant_bookings
+    group_bys:
+      - TimeDimension('metric_time', 'day')
+      - Dimension('listing__capacity_latest')
+    where:
+      - "{{ Dimension('listing__capacity_latest') }} > 3"
 ```
 
 ### FAQs