chore(deps): bump type-fest from 4.16.0 to 4.21.0

Bumps [type-fest](https://github.com/sindresorhus/type-fest) from 4.16.0 to 4.21.0.
- [Release notes](https://github.com/sindresorhus/type-fest/releases)
- [Commits](sindresorhus/type-fest@v4.16.0...v4.21.0)

---
updated-dependencies:
- dependency-name: type-fest
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -39,7 +39,7 @@
     "react": "^18.2.0",
     "semver": "^7.6.0",
     "tsup": "^8.0.2",
-    "type-fest": "^4.16.0",
+    "type-fest": "^4.21.0",
     "typescript": "^5.4.5",
     "vitest": "^1.5.0"
   },