Update buildTest.yml

Author: joydeep-b

.github/workflows/buildTest.yml

@@ -25,7 +25,7 @@ jobs:
           sudo apt install curl
           curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc | sudo apt-key add -
           sudo apt-get update
-          sudo apt-get install ros-noetic-desktop python-rosdep python-rosinstall python-rosinstall-generator python-wstool python-rosdep build-essential
+          sudo apt-get install ros-noetic-desktop python3-rosdep python3-rosinstall python3-rosinstall-generator python3-wstool build-essential
           sudo rosdep init
           rosdep update