ci: update release wf params

.github/workflows/release.yml

@@ -2,6 +2,10 @@
 name: Release collection
 on:
   workflow_dispatch:
+    inputs:
+      release_summary:
+        description: 'Optional release summary for changelogs'
+        required: false
 
 jobs:
   release:
@@ -9,6 +13,7 @@ jobs:
     with:
       collection_fqcn: 'middleware_automation.keycloak'
       downstream_name: 'rhbk'
+      release_summary: "${{ github.event.inputs.release_summary }}"
     secrets:
       galaxy_token: ${{ secrets.ANSIBLE_GALAXY_API_KEY }}
       jira_webhook: ${{ secrets.JIRA_WEBHOOK_CREATE_VERSION }}