chore(deps): update devdependency tsdown to v0.18.1 (#499)

[skip netlify]

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -65,7 +65,7 @@
     "pkg-types": "^2.3.0",
     "rimraf": "^6.1.2",
     "stylelint": "^16.26.1",
-    "tsdown": "0.18.0",
+    "tsdown": "0.18.1",
     "tslib": "^2.8.1",
     "tsup": "^8.5.1",
     "tsx": "^4.21.0",