fix: Update type in publish_images

Signed-off-by: Francisco Javier Arceo <[email protected]>

Author: franciscojavierarceo

.github/workflows/publish_images.yml

@@ -16,6 +16,7 @@ on:
       custom_version: # Optional input for a custom version
         description: 'Custom version to publish (e.g., v1.2.3) -- only edit if you know what you are doing'
         required: false
+        type: string
       token:
         description: 'Personal Access Token'
         required: true