adding missing dependency

provider/indexer-ibm/pom.xml

@@ -47,6 +47,12 @@
    			<version>0.0.12-SNAPSHOT</version>
    		</dependency>
 		
+		<dependency>
+          <groupId>org.apache.httpcomponents</groupId>
+          <artifactId>httpasyncclient</artifactId>
+          <version>4.1.4</version>
+        </dependency>
+        
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-security</artifactId>