try downgrading pnpm to 9 for node 16 support

Author: Rich-Harris

package.json

@@ -32,5 +32,5 @@
 	},
 	"license": "MIT",
 	"type": "module",
-	"packageManager": "pnpm@10.15.0"
+	"packageManager": "pnpm@9.15.9"
 }