Update changelog post 2.19.0 release (#1356)

Signed-off-by: Thomas Farr <[email protected]>
(cherry picked from commit a6b6b58)

Author: Xtansia

CHANGELOG.md

@@ -3,14 +3,11 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 ## [Unreleased 3.0]
 ### Dependencies
-- Bumps `org.junit:junit-bom` from 5.10.2 to 5.11.3
 - Bumps `org.eclipse.parsson:parsson` from 1.1.6 to 1.1.7
 - Bumps `org.hamcrest:hamcrest` from 2.2 to 3.0
 - Bumps `com.github.jk1.dependency-license-report` from 2.8 to 2.9
 - Bumps `org.apache.httpcomponents.client5:httpclient5` from 5.4 to 5.4.1
 - Bumps `org.apache.httpcomponents.core5:httpcore5` from 5.3 to 5.3.1
-- Bump `org.owasp.dependencycheck` from 11.1.0 to 11.1.1 ([#1344](https://github.com/opensearch-project/opensearch-java/pull/1344))
-- Bump `com.carrotsearch.randomizedtesting:randomizedtesting-runner` from 2.8.1 to 2.8.2 ([#1343](https://github.com/opensearch-project/opensearch-java/pull/1343))
 
 This section is for maintaining a changelog for all breaking changes for the client that cannot be released in the 2.x line. All other non-breaking changes should be added to [Unreleased 2.x] section.
 
@@ -53,14 +50,26 @@ This section is for maintaining a changelog for all breaking changes for the cli
 ### Removed
 
 ### Fixed
+
+### Security
+
+## [2.19.0] - 12/12/2024
+### Added
+- Added support for `IcuCollationKeywordProperty`'s `country`, `language` and `variant` properties ([#1321](https://github.com/opensearch-project/opensearch-java/pull/1321))
+
+### Dependencies
+- Bumps `org.junit:junit-bom` from 5.10.2 to 5.11.3
+- Bump `com.carrotsearch.randomizedtesting:randomizedtesting-runner` from 2.8.1 to 2.8.2 ([#1343](https://github.com/opensearch-project/opensearch-java/pull/1343))
+- Bump `org.owasp.dependencycheck` from 11.1.0 to 11.1.1 ([#1344](https://github.com/opensearch-project/opensearch-java/pull/1344))
+
+### Fixed
+- Fixed `IcuCollationDecomposition`'s variants to align with those supported by OpenSearch ([#1321](https://github.com/opensearch-project/opensearch-java/pull/1321))
+- Fixed don't invoke the mapper's serialize method for the RangeQuery JsonData raw value [#1309](https://github.com/opensearch-project/opensearch-java/pull/1309)
 - Fixed an issue where `FieldSort` was not implementing `SortOptionsVariant` ([#1323](https://github.com/opensearch-project/opensearch-java/pull/1323))
-- Fixed don't invoke the mapper's serialize method for the RangeQuery JsonData raw value ([#1309](https://github.com/opensearch-project/opensearch-java/pull/1309))
 - Fixed `GetSnapshotResponse` deserialization ([#1299](https://github.com/opensearch-project/opensearch-java/pull/1299))
 - Fixed `CreateSnapshotResponse` deserialization when wait_for_completion is false  ([#1332](https://github.com/opensearch-project/opensearch-java/pull/1332))
 - Fixed serialization of nested aggregates under `SingleBucketAggregateBase` ([#1350](https://github.com/opensearch-project/opensearch-java/pull/1350))
 
-### Security
-
 ## [2.18.0] - 11/19/2024
 ### Added
 - Added support for disabling typed keys serialization ([#1296](https://github.com/opensearch-project/opensearch-java/pull/1296))
@@ -585,7 +594,8 @@ This section is for maintaining a changelog for all breaking changes for the cli
 ### Security
 
 [Unreleased 3.0]: https://github.com/opensearch-project/opensearch-java/compare/2.x...HEAD
-[Unreleased 2.x]: https://github.com/opensearch-project/opensearch-java/compare/v2.18.0...2.x
+[Unreleased 2.x]: https://github.com/opensearch-project/opensearch-java/compare/v2.19.0...2.x
+[2.19.0]: https://github.com/opensearch-project/opensearch-java/compare/v2.18.0...v2.19.0
 [2.18.0]: https://github.com/opensearch-project/opensearch-java/compare/v2.17.0...v2.18.0
 [2.17.0]: https://github.com/opensearch-project/opensearch-java/compare/v2.16.0...v2.17.0
 [2.16.0]: https://github.com/opensearch-project/opensearch-java/compare/v2.15.0...v2.16.0