fix get_update_rate visibility in windows

[wmmc88]

I was previously getting the following compile error on Windows using Rolling:

controller_manager.obj : error LNK2019: unresolved external symbol "public: unsigned int __cdecl controller_interface::ControllerInterface::get_update_rate(void)const " (?get_update_rate@ControllerInterface@controller_interface@@QEBAIXZ) referenced in function "public: enum controller_interface::return_type __cdecl controller_manager::ControllerManager::update(class rclcpp::Time const &,class rclcpp::Duration const &)" (?update@ControllerManager@controller_manager@@QEAA?AW4return_type@controller_interface@@AEBVTime@rclcpp@@AEBVDuration@6@@Z) [C:\Users\melvi\git-repos\uwrt_ros2_ws\build\controller_manager\controller_manager.vcxproj]
C:\Users\melvi\git-repos\uwrt_ros2_ws\build\controller_manager\Release\controller_manager.dll : fatal error LNK1120: 1 unresolved externals [C:\Users\melvi\git-repos\uwrt_ros2_ws\build\controller_manager\controller_manager.vcxproj]

Looks like it was probably introduced in #513 .

my ws uses the following ros2_control.repos:

repositories:
  ros-controls/ros2_control:
    type: git
    url: https://github.com/ros-controls/ros2_control.git
    version: galactic
  ros-controls/ros2_controllers:
    type: git
    url: https://github.com/ros-controls/ros2_controllers.git
    version: master
  ros-controls/realtime_tools:
    type: git
    url: https://github.com/ros-controls/realtime_tools.git
    version: ros2_devel
  ros-controls/control_msgs:
    type: git
    url: https://github.com/ros-controls/control_msgs.git
    version: galactic-devel
  angles:
    type: git
    url: https://github.com/ros/angles.git
    version: ros2

Sidenote: Should https://github.com/ros-controls/ros2_control/blob/galactic/ros2_control/ros2_control.repos be updated to point to galactic, instead of what its currently pointing to (ie. master(ros2_control) and foxy-devel(control_msgs))?

[bmagyar]

@Mergifyio backport to galactic

[mergify]

backport to galactic

✅ Backports have been created

• Backport to branch to failed: Branch not found
• #588 fix get_update_rate visibility in windows (backport #586) has been created for branch galactic