Edit update-a-tag-configuration API docs (#1801)

Co-authored-by: ci.datadog-api-spec <[email protected]>
Co-authored-by: api-clients-generation-pipeline[bot] <54105614+api-clients-generation-pipeline[bot]@users.noreply.github.com>

Author: api-clients-generation-pipeline[bot]

.apigentools-info

@@ -4,13 +4,13 @@
     "spec_versions": {
         "v1": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2023-12-14 17:13:00.567226",
-            "spec_repo_commit": "fd0b0fcb"
+            "regenerated": "2023-12-14 19:38:24.188378",
+            "spec_repo_commit": "cdc82e06"
         },
         "v2": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2023-12-14 17:13:00.585680",
-            "spec_repo_commit": "fd0b0fcb"
+            "regenerated": "2023-12-14 19:38:24.201899",
+            "spec_repo_commit": "cdc82e06"
         }
     }
 }

.generator/schemas/v2/openapi.yaml

@@ -25603,7 +25603,9 @@ paths:
         queryable.
 
         Can only be used with application keys from users with the `Manage Tags for
-        Metrics` permission.'
+        Metrics` permission. This endpoint requires
+
+        a tag configuration to be created first.'
       operationId: UpdateTagConfiguration
       parameters:
       - $ref: '#/components/parameters/MetricName'

src/datadog_api_client/v2/api/metrics_api.py

@@ -792,7 +792,8 @@ def update_tag_configuration(
         Update the tag configuration of a metric or percentile aggregations of a distribution metric or custom aggregations
         of a count, rate, or gauge metric. By setting ``exclude_tags_mode`` to true the behavior is changed
         from an allow-list to a deny-list, and tags in the defined list will not be queryable.
-        Can only be used with application keys from users with the ``Manage Tags for Metrics`` permission.
+        Can only be used with application keys from users with the ``Manage Tags for Metrics`` permission. This endpoint requires
+        a tag configuration to be created first.
 
         :param metric_name: The name of the metric.
         :type metric_name: str