fix: file upload

Author: segunadebayo

.changeset/grumpy-radios-give.md

@@ -0,0 +1,5 @@
+---
+"@zag-js/file-upload": patch
+---
+
+Fix issue where multiple files could get added a single upload operation.

packages/machines/file-upload/src/file-upload.machine.ts

@@ -124,7 +124,6 @@ export function machine(userContext: UserDefinedContext) {
             })
 
             inputEl.files = dataTransfer.files
-            inputEl.dispatchEvent(new win.Event("input", { bubbles: true, composed: true }))
             inputEl.dispatchEvent(new win.Event("change", { bubbles: true }))
           })
         },