Replace interface{} with any (#25686)

Result of running `perl -p -i -e 's#interface\{\}#any#g' **/*` and `make fmt`.

Basically the same [as golang did](2580d0e08d).

routers/web/admin/config.go

@@ -207,7 +207,7 @@ func ChangeConfig(ctx *context.Context) {
 		return
 	}
 
-	ctx.JSON(http.StatusOK, map[string]interface{}{
+	ctx.JSON(http.StatusOK, map[string]any{
 		"version": version + 1,
 	})
 }