fix(rtl): add wc storybook rtl cmd back in for testing (#11618)

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

Author: 2 people

packages/web-components/package.json

@@ -53,7 +53,7 @@
     "build-storybook": "storybook build",
     "build-storybook:experimental": "C4D_FLAGS_ALL=true build-storybook -o storybook-static-experimental",
     "build-storybook:react": "gulp build:modules:react && node --max-old-space-size=8192 node_modules/@storybook/react/bin/build.js -c .storybook/react -o storybook-static-react",
-    "build-storybook:rtl": "STORYBOOK_USE_RTL=true build-storybook -o storybook-static-rtl",
+    "build-storybook:rtl": "cross-env STORYBOOK_USE_RTL=true build-storybook -o storybook-static-rtl",
     "ci-check": "yarn wca && yarn typecheck && yarn build && yarn test:unit",
     "clean": "gulp clean",
     "clean:dist": "rimraf dist",