Update CHANGELOG (#1494)

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

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

CHANGELOG.md

@@ -1,5 +1,40 @@
 # Changelog
 
+## 2.13.0 / 2023-05-31
+
+### Fixed
+* Mark usage fields as nullable by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1432
+* Properly mark usage fields as nullable by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1451
+* Remove read only attributes from team create and update by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1455
+### Added
+* Expose `include_breakdown` param for v2 hourly_usage by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1424
+* Add support for deserializing `additionalProperties` in GO client by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1417
+* Add new grpc assertions for Synthetics tests by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1429
+* add additional_query_filters to slo widget  by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1443
+* Add `customer_impact_scope` to fields by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1441
+* Add notify_end_states and notify_end_types options to downtime by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1445
+* Add snapshot timestamp to GetFinding by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1457
+* Support schema version parameter in Get and List Service Definition endpoints by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1460
+* Add Application Vulnerability Management to usage metering API by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1461
+* Add formula and function slo query to dash widgets by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1466
+* Add secure field to Synthetics Browser Test variables and update docs by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1465
+* Add MatchingDowntime to monitor schema and with_downtimes parameter to GetMonitor by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1475
+* Add auth scopes for the `service_definition` endpoints by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1479
+* Update documentation for observability pipeline bytes usage attribution by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1472
+* Add option to obfuscate extracted values from Synthetics multistep tests by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1473
+* Add support for GCP STS endpoints by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1464
+* Add `sort` field to List Stream Widget's request query by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1492
+### Changed
+* Update spec to change findings limit and security monitoring menu order by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1426
+* Require teams_manage scope for creating and deleting teams by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1444
+* Remove models for arrays by @therve in https://github.com/DataDog/datadog-api-client-python/pull/1431
+* Update team name and handle length restrictions by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1493
+### Deprecated
+* Deprecate note for Incident Teams endpoints by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1450
+
+
+**Full Changelog**: https://github.com/DataDog/datadog-api-client-python/compare/2.12.0...2.13.0
+
 ## 2.12.0 / 2023-04-18
 
 ### Fixed