fix(non-monorepo): correct devDependency from 'turb' to 'turbo' (#10526)

Fixes #10523

This PR updates the `non-monorepo` template to use the correct `turbo`
package as a devDependency instead of the incorrect `turb`.

### Changes
- Updated `template/package.json` in the `non-monorepo` example to use
`"turbo"` as a `devDependency`.

### Context
Previously, running `npx create-turbo@latest -e non-monorepo` would
generate a project with `turb` listed in `devDependencies`, causing
confusion and requiring users to manually install `turbo`.

This fix ensures new projects created from this template have the
correct dependency out of the box.

Let me know if there’s anything else I should adjust!

---------

Co-authored-by: Anthony Shew <anthonyshew@gmail.com>
Co-authored-by: Anthony Shew <anthony.shew@vercel.com>

Author: DiegoDev2

examples/non-monorepo/package.json

@@ -14,7 +14,7 @@
     "next": "15.3.3",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
-    "turb": "^0.1.2"
+    "turbo": "^2.5.4"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3.3.1",