Release 2.20.0 (#1798)

* Update CHANGELOG

* Update CHANGELOG.md

---------

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

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

CHANGELOG.md

@@ -1,5 +1,30 @@
 # Changelog
 
+## 2.20.0 / 2023-12-12
+
+### Fixed
+* Fix Powerpack schema by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1752
+### Added
+* Add support for projected-cost endpoint by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1735
+* Document missing incident fields by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1756
+* Add active billing dimensions to usage metering by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1773
+* Add Cost Attribution To Usage Metering Public Beta Documentation by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1759
+* Update spec to include new DORA API endpoints by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1772
+* Add support to patch Synthetics test with partial data using JSON Patch by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1767
+* Document new api/app key schemas by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1755
+* Document new field `filters` for `CloudWorkloadSecurityAgentRule` by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1774
+* Live and historical custom timeseries docs by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1765
+* Add week_to_date and month_to_date to widget livespan by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1768
+* Document `included_keywords` in `ListStandardPatterns` response by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1777
+* Document fields `remote_config_read_enabled` and `category` by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1775
+* Update Azure Spec to include Resource Collection by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1782
+* Allow creation of Application Security detection rules from the v2 API by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1784
+* Add Okta Integration APIs by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1766
+* Remove unstable flag for Events v2 api by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-python/pull/1791
+
+
+**Full Changelog**: https://github.com/DataDog/datadog-api-client-python/compare/2.19.0...2.20.0
+
 ## 2.19.0 / 2023-11-15
 
 ### Fixed