Update version number in README.MD to 1.4.5.

Author: lixby03

README.MD

@@ -1,5 +1,5 @@
 # Orbbec ROS SDK
-[![stable](http://badges.github.io/stability-badges/dist/stable.svg)](http://github.com/badges/stability-badges) ![version](https://img.shields.io/badge/version-1.4.4-green)
+[![stable](http://badges.github.io/stability-badges/dist/stable.svg)](http://github.com/badges/stability-badges) ![version](https://img.shields.io/badge/version-1.4.5-green)
 
 Orbbec ROS SDK is a wrapper for OrbbecSDK that supports ROS Kinetic, Melodic, and Noetic distributions.
 It enables smooth integration of Orbbec 3D cameras into ROS projects.