Update to almalinux:10 (#20482)

Signed-off-by: Prudhvi Godithi <pgodithi@amazon.com>

Author: prudhvigodithi

CHANGELOG.md

@@ -19,6 +19,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Add tracing support for StreamingRestChannel  ([#20361](https://github.com/opensearch-project/OpenSearch/pull/20361))
 - Introduce new libs/netty4 module to share common implementation between netty-based plugins and modules (transport-netty4, transport-reactor-netty4) ([#20447](https://github.com/opensearch-project/OpenSearch/pull/20447))
 - Add validation to make crypto store settings immutable ([#20123](https://github.com/opensearch-project/OpenSearch/pull/20123))
+- Update to `almalinux:10` ([#20482](https://github.com/opensearch-project/OpenSearch/pull/20482))
 
 ### Changed
 - Handle custom metadata files in subdirectory-store ([#20157](https://github.com/opensearch-project/OpenSearch/pull/20157))
@@ -89,4 +90,4 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - Remove identity-shiro from plugins folder ([#20305](https://github.com/opensearch-project/OpenSearch/pull/20305))
 
-[Unreleased 3.x]: https://github.com/opensearch-project/OpenSearch/compare/3.4...main
+[Unreleased 3.x]: https://github.com/opensearch-project/OpenSearch/compare/3.4...main

buildSrc/src/main/java/org/opensearch/gradle/DockerBase.java

@@ -36,7 +36,7 @@
  * This class models the different Docker base images that are used to build Docker distributions of OpenSearch.
  */
 public enum DockerBase {
-    ALMALINUX("almalinux:8");
+    ALMALINUX("almalinux:10");
 
     private final String image;