Add callTimeout field to ConductorClient builder

conductor-clients/java/conductor-java-sdk/conductor-client/src/main/java/com/netflix/conductor/client/http/ConductorClient.java

@@ -101,6 +101,10 @@ protected ConductorClient(Builder<?> builder) {
             okHttpBuilder.writeTimeout(builder.writeTimeout, TimeUnit.MILLISECONDS);
         }
 
+        if (builder.callTimeout > -1) {
+            okHttpBuilder.callTimeout(builder.callTimeout, TimeUnit.MILLISECONDS);
+        }
+
         if (builder.proxy != null) {
             okHttpBuilder.proxy(builder.proxy);
         }
@@ -442,6 +446,7 @@ public static class Builder<T extends Builder<T>>  {
         private long connectTimeout = -1;
         private long readTimeout = -1;
         private long writeTimeout = -1;
+        private long callTimeout = -1;
         private Proxy proxy;
         private ConnectionPoolConfig connectionPoolConfig;
         private Supplier<ObjectMapper> objectMapperSupplier = () -> new ObjectMapperProvider().getObjectMapper();
@@ -487,6 +492,11 @@ public T writeTimeout(long writeTimeout) {
             return self();
         }
 
+        public T callTimeout(long callTimeout) {
+            this.callTimeout = callTimeout;
+            return self();
+        }
+
         public T proxy(Proxy proxy) {
             this.proxy = proxy;
             return self();