Make clickhouse-http-client as mandatory dependency

Author: chernser

client-v2/pom.xml

@@ -30,7 +30,6 @@
             <groupId>${project.parent.groupId}</groupId>
             <artifactId>clickhouse-http-client</artifactId>
             <version>${revision}</version>
-            <optional>true</optional>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
@@ -318,4 +317,4 @@
         </profile>
     </profiles>
 
-</project>
+</project>