ci : fix typo in release GitHub action workflow

Signed-off-by: Rohan Kumar <rohaan@redhat.com>

Author: rohanKanojia

.github/workflows/release.yml

@@ -9,7 +9,7 @@ env:
 
 on:
   workflow_dispatch:
-    input:
+    inputs:
       tag:
         description: Tag to release
         required: true