Update module-info.java to export the esql package as well

x-pack/plugin/core/src/main/java/module-info.java

@@ -59,6 +59,7 @@ module org.elasticsearch.xcore {
     exports org.elasticsearch.xpack.core.enrich.action;
     exports org.elasticsearch.xpack.core.enrich;
     exports org.elasticsearch.xpack.core.eql;
+    exports org.elasticsearch.xpack.core.esql;
     exports org.elasticsearch.xpack.core.frozen.action;
     exports org.elasticsearch.xpack.core.frozen;
     exports org.elasticsearch.xpack.core.graph.action;