chore(package): update @storybook/addon-actions to version 5.3.15

Closes #18

Author: greenkeeper[bot]

examples/package.json

@@ -12,7 +12,7 @@
   "license": "MIT",
   "devDependencies": {
     "@babel/core": "^7.1.2",
-    "@storybook/addon-actions": "^4.0.0-rc.1",
+    "@storybook/addon-actions": "^5.3.15",
     "@storybook/addon-info": "^4.0.0-rc.1",
     "@storybook/addon-options": "^4.0.0-rc.1",
     "@storybook/react": "^4.0.0-rc.1",