Update azure pipelines

Author: shaobin

azure-pipelines-linux.yml

@@ -27,7 +27,6 @@ pool:
 steps:
 - script: |
     sudo apt update
-    sudo apt upgrade -y
     sudo apt install -y g++ cmake libssl-dev
     sudo apt install -y dotnet-sdk-7.0
   displayName: 'Set up development environment'