chore(dev-deps): update dependency tsx to v4.21.0

Author: renovate[bot]

package.json

@@ -50,7 +50,7 @@
     "sinon": "21.0.0",
     "sinon-chai": "4.0.1",
     "size-limit": "11.2.0",
-    "tsx": "4.20.6",
+    "tsx": "4.21.0",
     "typescript": "5.9.3"
   },
   "keywords": [