feat: downgrade Elasticsearch client to 7.10.2 for open source compliance

Downgraded elasticsearch-rest-high-level-client from 7.17.13 to 7.10.2
to maintain Apache 2.0 open source licensing compliance.

Author: chethann007

jobs-core/pom.xml

@@ -160,7 +160,7 @@
         <dependency>
             <groupId>org.elasticsearch.client</groupId>
             <artifactId>elasticsearch-rest-high-level-client</artifactId>
-            <version>7.17.13</version>
+            <version>7.10.2</version>
         </dependency>
         <dependency>
             <groupId>com.twitter</groupId>

jobs-core/src/main/scala/org/sunbird/job/util/ElasticSearchUtil.scala

@@ -14,7 +14,7 @@ import org.elasticsearch.action.update.UpdateRequest
 import org.elasticsearch.client.indices.{CreateIndexRequest, CreateIndexResponse}
 import org.elasticsearch.client.{Request, RequestOptions, Response, RestClient, RestClientBuilder, RestHighLevelClient}
 import org.elasticsearch.common.settings.Settings
-import org.elasticsearch.xcontent.XContentType
+import org.elasticsearch.common.xcontent.XContentType;
 import org.slf4j.LoggerFactory
 
 import java.io.IOException