ci: Update standalone build test

ms-toolsai.jupyter is now a dependency of ms-python and is installed
along with it.

ci/build/test-standalone-release.sh

@@ -15,7 +15,8 @@ main() {
   ./release-standalone/bin/code-server --extensions-dir "$EXTENSIONS_DIR" --install-extension ms-python.python
   local installed_extensions
   installed_extensions="$(./release-standalone/bin/code-server --extensions-dir "$EXTENSIONS_DIR" --list-extensions 2>&1)"
-  if [[ $installed_extensions != "ms-python.python" ]]; then
+  # We use grep as ms-python.python may have dependency extensions that change.
+  if ! echo "$installed_extensions" | grep -q "ms-python.python"; then
     echo "Unexpected output from listing extensions:"
     echo "$installed_extensions"
     exit 1