update version pairs for generated docs

[netlify[bot]]

✅ Deploy Preview for vitess ready!

Name	Link
🔨 Latest commit	e78a6d54cc228724d746704d8758d84b7148a168
🔍 Latest deploy log	https://app.netlify.com/sites/vitess/deploys/650314e734697c0008ba91c5
😎 Deploy Preview	https://deploy-preview-1584--vitess.netlify.app/docs/15.0/reference/programs/vtctldclient
📱 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 configuration.