fixed naming

Signed-off-by: Kai Huang <ahkcs@amazon.com>

Author: ahkcs

.github/workflows/maven-publish.yml

@@ -299,7 +299,7 @@ jobs:
                   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
               <modelVersion>4.0.0</modelVersion>
               <groupId>org.opensearch</groupId>
-              <artifactId>${ARTIFACT_ID}</artifactId>
+              <artifactId>${DIR_NAME}</artifactId>
               <version>${VERSION}</version>
           </project>
           EOF