SeaORM docs: SQLite doesn't support `u64`

[billy1624]

PR Info

• Related to https://github.com/SeaQL/sea-orm/issues/1400

Changes

• [x] SQLite doesn't support u64

[netlify[bot]]

✅ Deploy Preview for seaql ready!

Name	Link
🔨 Latest commit	e36360e0bd5f65fcecd99e0b8579908d6eb9b4bd
🔍 Latest deploy log	https://app.netlify.com/sites/seaql/deploys/63db5999dc281b0008339d9c
😎 Deploy Preview	https://deploy-preview-88--seaql.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.