Prepare release 2.15.1 (#6824)

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: dlvenable <293424+dlvenable@users.noreply.github.com>

Author: opensearch-trigger-bot[bot]

THIRD-PARTY

@@ -1,5 +1,5 @@
 
-Dependency License Report for opensearch-data-prepper 2.15.0
+Dependency License Report for opensearch-data-prepper 2.15.1
 
 1. Group: aopalliance  Name: aopalliance  Version: 1.0
 
@@ -5105,7 +5105,7 @@ POM License: MIT - https://github.com/mbknor/mbknor-jackson-jsonSchema/blob/mast
 
 --------------------------------------------------------------------------------
 
-108. Group: com.linecorp.armeria  Name: armeria  Version: 1.32.5
+108. Group: com.linecorp.armeria  Name: armeria  Version: 1.32.6
 
 POM Project URL: https://armeria.dev/
 
@@ -5320,23 +5320,23 @@ Embedded license:
 
 --------------------------------------------------------------------------------
 
-109. Group: com.linecorp.armeria  Name: armeria-grpc  Version: 1.32.5
+109. Group: com.linecorp.armeria  Name: armeria-grpc  Version: 1.32.6
 
 POM Project URL: https://armeria.dev/
 
 POM License: The Apache License, Version 2.0 - https://www.apache.org/license/LICENSE-2.0.txt
 
 --------------------------------------------------------------------------------
 
-110. Group: com.linecorp.armeria  Name: armeria-grpc-protocol  Version: 1.32.5
+110. Group: com.linecorp.armeria  Name: armeria-grpc-protocol  Version: 1.32.6
 
 POM Project URL: https://armeria.dev/
 
 POM License: The Apache License, Version 2.0 - https://www.apache.org/license/LICENSE-2.0.txt
 
 --------------------------------------------------------------------------------
 
-111. Group: com.linecorp.armeria  Name: armeria-protobuf  Version: 1.32.5
+111. Group: com.linecorp.armeria  Name: armeria-protobuf  Version: 1.32.6
 
 POM Project URL: https://armeria.dev/
 
@@ -84119,5 +84119,5 @@ POM License: The Apache License, Version 2.0 - http://www.apache.org/licenses/LI
 --------------------------------------------------------------------------------
 
 
-This report was generated at Mon Apr 06 14:24:09 UTC 2026.
+This report was generated at Tue May 05 22:16:45 UTC 2026.
 

gradle.properties

@@ -7,5 +7,5 @@
 # compatible open source license.
 #
 
-version=2.15.0
+version=2.15.1
 org.gradle.jvmargs=-Xmx2048M