chore(dependencies): update package versions to 15.4.3 and 2.31.8 (#309)

- Bumped `next` version from `15.4.2` to `15.4.3` across multiple packages for improved compatibility.
- Updated `react-i18next` from `15.6.0` to `15.6.1` in several packages to incorporate the latest features and fixes.
- Incremented `@stripe/react-stripe-js` from `3.7.0` to `3.8.0` and `@stripe/stripe-js` from `7.5.0` to `7.6.1` for enhanced functionality.
- Updated `@keystatic/core` from `0.5.47` to `0.5.48` for better integration.
- Incremented `supabase` from `2.30.4` to `2.31.8` to ensure the latest improvements and bug fixes are included.

packages/ui/package.json

@@ -33,12 +33,12 @@
     "class-variance-authority": "^0.7.1",
     "date-fns": "^4.1.0",
     "eslint": "^9.31.0",
-    "next": "15.4.2",
+    "next": "15.4.3",
     "next-themes": "0.4.6",
     "prettier": "^3.6.2",
     "react-day-picker": "^9.8.0",
     "react-hook-form": "^7.60.0",
-    "react-i18next": "^15.6.0",
+    "react-i18next": "^15.6.1",
     "sonner": "^2.0.6",
     "tailwindcss": "4.1.11",
     "tailwindcss-animate": "^1.0.7",