docs: Update README to reflect new OpenCV version dependency

- Added steps to build the ROS2 package with `colcon build --symlink-install` and `source install/setup.bash`.
- Updated instructions for ROS2 packages requiring reconfiguration to use OpenCV 4.10.0.
- Modified CMakeLists.txt example to specify OpenCV 4.10.0 version explicitly:

  ```cmake
  find_package(OpenCV 4.10.0 REQUIRED)

docs/opencv_install_guide.md

@@ -147,4 +147,18 @@ set(OpenCV_MODULES_SUFFIX )
    cd ~/ros2_ws
    colcon build --symlink-install
    source install/setup.bash
-   ```
+   ```
+
+## ROS2 Dependency Reconfiguration
+Packages that depend on OpenCV will need to be reconfigured to use the new OpenCV version.
+
+Change CMakeLists.txt of the package to use the new OpenCV version.
+
+Change: 
+```cmake
+find_package(OpenCV REQUIRED)
+```
+to:
+```cmake
+find_package(OpenCV 4.10.0 REQUIRED)
+```