chore: string also allows as args in Intl.NumberFormat.format

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/format#parameters

Author: hengistchan

src/lib/es2020.bigint.d.ts

@@ -742,6 +742,6 @@ interface DataView<TArrayBuffer extends ArrayBufferLike> {
 
 declare namespace Intl {
     interface NumberFormat {
-        format(value: number | bigint): string;
+        format(value: number | bigint | string): string;
     }
 }