[rclcpp_action] Bump test_client timeout. (#917)
[rclcpp_action] Bump test_client timeout. (#917)

Signed-off-by: Michel Hidalgo <2c7f9fd20fbeb41ce8894ec4653d66fa7f3b6e1a@ekumenlabs.com>
ros2/rclcpp,ros2/rclcpp