Update available python3 version on AzurePipelines (#279)

* Use && instead of and for Windows

* Simulate fork on Windows by redirecting stderr

* Use exisiting onnx-mlir instead of cloning from master

* Update python3 libary for azo

* avoid git add .vscode

* revert change

Co-authored-by: Gheorghe-Teodor Bercea <gt.bercea@gmail.com>

.azure-pipelines/Windows-CI.yml

@@ -13,7 +13,7 @@ jobs:
   steps:
   - task: UsePythonVersion@0
     inputs:
-      versionSpec: '3.7.8'
+      versionSpec: '3.7.9'
       architecture: 'x64'
 
   - powershell: Write-Host "##vso[task.prependpath]$env:CONDA\Scripts"

.gitignore

@@ -179,3 +179,6 @@ dmypy.json
 
 #editor
 *~
+
+# Visual Studio Code Files
+.vscode