Fix integrations catalog API URL

[netlify[bot]]

✅ Deploy Preview for storybook-frontpage ready!

Name	Link
🔨 Latest commit	60caf68a236fda6f9098558098c3cd9de38ceb05
🔍 Latest deploy log	https://app.netlify.com/sites/storybook-frontpage/deploys/642b093ec298800008c82429
😎 Deploy Preview	https://deploy-preview-515--storybook-frontpage.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.