Create a custom Air-Gapped Cloud Build (#24595)

* initial commit with new build step for agc

* add mixin agc step

* add commit hash

build/azure-pipelines/win32/sql-product-build-win32.yml

@@ -51,6 +51,13 @@ steps:
       git merge $(node -p "require('./package.json').distro")
     displayName: Merge distro
 
+  - powershell: |
+      git remote add distro "https://github.com/$(VSCODE_MIXIN_REPO).git"
+      git fetch distro
+      git cherry-pick 51ef46d56b81ae967f3ae185661996540bf2b642
+    condition: eq(variables['VSCODE_QUALITY'], 'agc')
+    displayName: Merge AGC endpoints
+
   - powershell: |
       . build/azure-pipelines/win32/exec.ps1
       $ErrorActionPreference = "Stop"
@@ -139,6 +146,19 @@ steps:
     displayName: Install SAW Extensions
     condition: and(succeeded(), eq(variables['VSCODE_QUALITY'], 'saw'), ne(variables['VSCODE_ARCH'], 'arm64'))
 
+  - powershell: |
+      # Install AGC specific extensions
+      $ErrorActionPreference = "Stop"
+      $tempFilePath = (New-TemporaryFile).FullName
+      $zipFilePath = $tempFilePath + ".zip"
+      $extensionUri = "$(agc-extensions-uri)"
+      $adsExtensionPath = "$(agent.builddirectory)\azuredatastudio-win32-x64\resources\app\extensions"
+      Invoke-WebRequest -Uri $extensionUri -OutFile $tempFilePath
+      Move-Item $tempFilePath $zipFilePath
+      Expand-Archive $zipFilePath -DestinationPath $adsExtensionPath
+    displayName: Install AGC Extensions
+    condition: and(succeeded(), eq(variables['VSCODE_QUALITY'], 'agc'), ne(variables['VSCODE_ARCH'], 'arm64'))
+
   # - powershell: | @anthonydresser unit tests timeout never existing the node process
   #     . build/azure-pipelines/win32/exec.ps1
   #     $ErrorActionPreference = "Stop"