Update events intake specs for v2 Events post endpoint (#707)

Co-authored-by: ci.datadog-api-spec <[email protected]>

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

.apigentools-info

@@ -4,13 +4,13 @@
     "spec_versions": {
         "v1": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2025-06-18 13:32:39.311749",
-            "spec_repo_commit": "5e49afe1"
+            "regenerated": "2025-06-18 14:53:43.833602",
+            "spec_repo_commit": "5f7cad1f"
         },
         "v2": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2025-06-18 13:32:39.327686",
-            "spec_repo_commit": "5e49afe1"
+            "regenerated": "2025-06-18 14:53:43.850524",
+            "spec_repo_commit": "5f7cad1f"
         }
     }
 }