(experiment) skip GH action env writes in Windows

get_repo.sh

@@ -8,6 +8,9 @@ echo "Got the latest MS tag: ${LATEST_MS_TAG}"
 
 git clone https://github.com/Microsoft/vscode.git --branch $LATEST_MS_TAG --depth 1
 
-echo "LATEST_MS_COMMIT=$LATEST_MS_COMMIT" >> $GITHUB_ENV
-echo "LATEST_MS_TAG=$LATEST_MS_TAG" >> $GITHUB_ENV
+# for GH actions
+if [[ "$CI_WINDOWS" != "True" ]]; then
+  echo "LATEST_MS_COMMIT=$LATEST_MS_COMMIT" >> $GITHUB_ENV
+  echo "LATEST_MS_TAG=$LATEST_MS_TAG" >> $GITHUB_ENV
+fi