Update Storybook updates to v6.4.21 (#47523)

* Update Storybook updates to v6.4.21

* chore(yarn): update yarnrc storybook versions

Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: Jack Westbrook <jack.westbrook@gmail.com>

.yarnrc.yml

@@ -9,28 +9,28 @@ packageExtensions:
   "@mdx-js/loader@1.6.22":
     peerDependencies:
       react: 17.0.1
-  "@storybook/addon-docs@6.4.15":
+  "@storybook/addon-docs@6.4.21":
     peerDependencies:
-      "@storybook/manager-webpack5": 6.4.15
-  "@storybook/addon-essentials@6.4.15":
+      "@storybook/manager-webpack5": 6.4.21
+  "@storybook/addon-essentials@6.4.21":
     peerDependencies:
-      "@storybook/components": 6.4.15
-      "@storybook/core-events": 6.4.15
-      "@storybook/manager-webpack5": 6.4.15
-      "@storybook/theming": 6.4.15
-  "@storybook/core-server@6.4.15":
+      "@storybook/components": 6.4.21
+      "@storybook/core-events": 6.4.21
+      "@storybook/manager-webpack5": 6.4.21
+      "@storybook/theming": 6.4.21
+  "@storybook/core-server@6.4.21":
     peerDependencies:
       "@babel/core": ^7.0.0
-  "@storybook/core@6.4.15":
+  "@storybook/core@6.4.21":
     peerDependencies:
       "@babel/core": ^7.0.0
-      "@storybook/manager-webpack5": 6.4.15
-  "@storybook/csf-tools@6.4.15":
+      "@storybook/manager-webpack5": 6.4.21
+  "@storybook/csf-tools@6.4.21":
     peerDependencies:
       "@babel/core": ^7.0.0
-  "@storybook/react@6.4.15":
+  "@storybook/react@6.4.21":
     peerDependencies:
-      "@storybook/manager-webpack5": 6.4.15
+      "@storybook/manager-webpack5": 6.4.21
   doctrine@3.0.0:
     dependencies:
       assert: 2.0.0

packages/grafana-ui/package.json

@@ -100,20 +100,20 @@
     "@rollup/plugin-commonjs": "21.0.2",
     "@rollup/plugin-image": "2.1.1",
     "@rollup/plugin-node-resolve": "13.1.3",
-    "@storybook/addon-a11y": "6.4.15",
-    "@storybook/addon-actions": "6.4.15",
-    "@storybook/addon-docs": "6.4.15",
-    "@storybook/addon-essentials": "6.4.15",
+    "@storybook/addon-a11y": "6.4.21",
+    "@storybook/addon-actions": "6.4.21",
+    "@storybook/addon-docs": "6.4.21",
+    "@storybook/addon-essentials": "6.4.21",
     "@storybook/addon-knobs": "6.4.0",
-    "@storybook/addon-storysource": "6.4.15",
-    "@storybook/addons": "6.4.15",
-    "@storybook/api": "6.4.15",
-    "@storybook/builder-webpack5": "6.4.15",
-    "@storybook/components": "6.4.15",
-    "@storybook/core-events": "6.4.15",
-    "@storybook/manager-webpack5": "6.4.15",
-    "@storybook/react": "6.4.15",
-    "@storybook/theming": "6.4.15",
+    "@storybook/addon-storysource": "6.4.21",
+    "@storybook/addons": "6.4.21",
+    "@storybook/api": "6.4.21",
+    "@storybook/builder-webpack5": "6.4.21",
+    "@storybook/components": "6.4.21",
+    "@storybook/core-events": "6.4.21",
+    "@storybook/manager-webpack5": "6.4.21",
+    "@storybook/react": "6.4.21",
+    "@storybook/theming": "6.4.21",
     "@swc/helpers": "0.3.8",
     "@testing-library/dom": "8.13.0",
     "@testing-library/jest-dom": "5.16.2",