Update yml file to enable running E2E tests on Linux (#586)

Author: Francisco-Gamino

azure-pipelines-e2e-integration-tests.yml

@@ -8,8 +8,15 @@ pr:
     include:
     - releases/*
 
+strategy:
+  matrix:
+    linux:
+      imageName: 'ubuntu-latest'
+    windows:
+      imageName: 'vs2017-win2016'
+
 pool:
-    vmImage: 'vs2017-win2016'
+    vmImage: $(imageName)
 
 steps:
 - pwsh: ./test/E2E/Start-E2ETest.ps1 -UseCoreToolsBuildFromIntegrationTests