Update storybook monorepo to ^6.4.18

Signed-off-by: Renovate Bot <bot@renovateapp.com>

Author: renovate-bot

package-lock.json

@@ -40,9 +40,9 @@
     "@babel/plugin-proposal-throw-expressions": "^7.16.7",
     "@babel/preset-env": "^7.16.11",
     "@babel/preset-react": "^7.16.7",
-    "@storybook/addon-actions": "^6.0.0",
+    "@storybook/addon-actions": "^6.4.18",
     "@storybook/cli": "^5.3.22",
-    "@storybook/react": "^6.0.0",
+    "@storybook/react": "^6.4.18",
     "babel": "^6.23.0",
     "babel-eslint": "^10.1.0",
     "babel-loader": "^8.2.3",