build(deps-dev): bump tsx from 4.20.6 to 4.21.0 (#199)

Bumps [tsx](https://github.com/privatenumber/tsx) from 4.20.6 to 4.21.0.
- [Release notes](https://github.com/privatenumber/tsx/releases)
- [Changelog](https://github.com/privatenumber/tsx/blob/master/release.config.cjs)
- [Commits](privatenumber/tsx@v4.20.6...v4.21.0)

---
updated-dependencies:
- dependency-name: tsx
  dependency-version: 4.21.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package.json

@@ -9,7 +9,7 @@
     "@codama/renderers-rust": "~1.0",
     "@iarna/toml": "^2.2.5",
     "codama": "^1.4",
-    "tsx": "^4.19.2",
+    "tsx": "^4.21.0",
     "typescript": "^5.9.3",
     "zx": "^8.8.5"
   },