Update CHANGELOG

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

CHANGELOG.md

@@ -1,5 +1,25 @@
 # CHANGELOG
 
+## 2.33.0 / 2025-05-01
+
+### Fixed
+* Set required properties for schedules in OnCall API by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-ruby/pull/2342
+* Update On-Call Escalation policies endpoints schemas and description by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-ruby/pull/2353
+### Added
+* Update NDM GetInterfaces documentation to add get_ip_addresses param by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-ruby/pull/2330
+* Add OnCall Escalation Policy v2 endpoints by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-ruby/pull/2341
+* datadog_integration_gcp_sts Add Support for IsPerProjectQuotaEnabled for GCP STS Service Accounts  by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-ruby/pull/2349
+* Complete Observability Pipelines API by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-ruby/pull/2358
+* Add budgeting endpoints by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-ruby/pull/2337
+### Changed
+* Add Monitor Notification Rules v2 API by @api-clients-generation-pipeline in https://github.com/DataDog/datadog-api-client-ruby/pull/2317
+* Remove `uuidtools` while maintaining validation logic by @AlexMooney in https://github.com/DataDog/datadog-api-client-ruby/pull/2320
+
+## New Contributors
+* @AlexMooney made their first contribution in https://github.com/DataDog/datadog-api-client-ruby/pull/2320
+
+**Full Changelog**: https://github.com/DataDog/datadog-api-client-ruby/compare/v2.32.0...v2.33.0
+
 ## 2.32.0 / 2025-04-14
 
 ### Fixed