fix: use named export from defu

pi0 · pi0 · commit b9401d16c817 · 2023-01-24T14:06:17.000+01:00
diff --git a/src/index.ts b/src/index.ts
@@ -3,7 +3,7 @@ import { resolve } from "node:path";
 import { homedir } from "node:os";
 import destr from "destr";
 import flat from "flat";
-import defu from "defu";
+import { defu } from "defu";
 
 const RE_KEY_VAL = /^\s*([^\s=]+)\s*=\s*(.*)?\s*$/;
 const RE_LINES = /\n|\r|\r\n/;
