Add Observability Pipelines API (#3008)

* update formatter to use default name

* Regenerate client from commit d0287df0 of spec repo

---------

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

Author: 3 people

.apigentools-info

@@ -4,13 +4,13 @@
     "spec_versions": {
         "v1": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2025-04-04 20:19:32.147230",
-            "spec_repo_commit": "3909ab62"
+            "regenerated": "2025-04-07 18:49:38.618782",
+            "spec_repo_commit": "d0287df0"
         },
         "v2": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2025-04-04 20:19:32.164476",
-            "spec_repo_commit": "3909ab62"
+            "regenerated": "2025-04-07 18:49:38.635233",
+            "spec_repo_commit": "d0287df0"
         }
     }
 }