chore(deps): update dependency tsdown to v0.21.3

Author: renovate[bot]

pnpm-workspace.yaml

@@ -11,7 +11,7 @@ catalog:
   '@oxc-node/core': 0.0.35
   '@tailwindcss/vite': 4.1.18
   '@types/node': 24.1.0
-  tsdown: 0.21.2
+  tsdown: 0.21.3
   typescript: 5.9.3
   vitest: 4.1.0
   oxfmt: 0.37.0