Update storybook monorepo to v6

Author: renovate-bot

package.json

@@ -66,11 +66,11 @@
     "@babel/preset-react": "7.10.4",
     "@baransu/graphql_ppx_re": "0.7.1",
     "@percy-io/percy-storybook": "2.1.0",
-    "@storybook/addon-actions": "5.3.19",
+    "@storybook/addon-actions": "6.0.0",
     "@storybook/addon-centered": "5.3.19",
-    "@storybook/addon-links": "5.3.19",
-    "@storybook/addons": "5.3.19",
-    "@storybook/react": "5.3.19",
+    "@storybook/addon-links": "6.0.0",
+    "@storybook/addons": "6.0.0",
+    "@storybook/react": "6.0.0",
     "@testing-library/jest-dom": "5.11.2",
     "@testing-library/react": "10.4.8",
     "autoprefixer": "9.8.6",