skip group policy and explorer sparse package in CIBUILD runs (microsoft#188346)

Author: joaomoreno

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

@@ -136,7 +136,7 @@ steps:
 
   - template: ../common/install-builtin-extensions.yml
 
-  - ${{ if ne(parameters.VSCODE_QUALITY, 'oss') }}:
+  - ${{ if and(ne(parameters.VSCODE_CIBUILD, true), ne(parameters.VSCODE_QUALITY, 'oss')) }}:
     - powershell: node build\lib\policies
       displayName: Generate Group Policy definitions
       retryCountOnTaskFailure: 3
@@ -148,7 +148,7 @@ steps:
       displayName: Transpile
 
   - ${{ else }}:
-    - ${{ if eq(parameters.VSCODE_QUALITY, 'insider') }}:
+    - ${{ if and(ne(parameters.VSCODE_CIBUILD, true), eq(parameters.VSCODE_QUALITY, 'insider')) }}:
       - powershell: node build/win32/explorer-appx-fetcher .build/win32/appx
         displayName: Download Explorer Sparse Package