Use ubuntu-18.04 VM image for build_test linux container job

joeltimothyoh · joeltimothyoh · commit e18139ff1be4 · 2019-11-01T23:54:59.000+08:00
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
@@ -39,7 +39,7 @@ stages:
   - job: linux_container
     displayName: '[Linux] [Container] PowerShell'
     pool:
-      vmImage: ubuntu-16.04
+      vmImage: ubuntu-18.04
     strategy:
       matrix:
         6.2.0:
