Replace Nightly CI with ADO (#1526)

1st step to use Nightly build artifact with Babylon.js PR checks

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Co-authored-by: Gary Hsu <[email protected]>

Author: CedricGuillemet

.github/workflows/nightly.yml

@@ -1,5 +1,5 @@
 [![Build Status](https://dev.azure.com/babylonjs/ContinousIntegration/_apis/build/status/BabylonNative%20CI?branchName=master)](https://dev.azure.com/babylonjs/ContinousIntegration/_build/latest?definitionId=6&branchName=master)
-[![Nightly build](https://github.com/BabylonJS/BabylonNative/actions/workflows/nightly.yml/badge.svg?branch=master)](https://github.com/BabylonJS/BabylonNative/actions/workflows/nightly.yml)
+[![Nightly Build](https://dev.azure.com/babylonjs/ContinousIntegration/_apis/build/status%2FBabylonNative%20Nightly%20CI?branchName=master)](https://dev.azure.com/babylonjs/ContinousIntegration/_build/latest?definitionId=36&branchName=master)
 
 # Babylon Native