Attempt at fixing release-drafter workflow (#160)

Author: gdraynz

.github/workflows/release.yml

@@ -90,8 +90,8 @@ jobs:
           method: chat.postMessage
           token: ${{ secrets.SLACK_RELEASE_CHANGELOG_BOT_TOKEN }}
           payload: |
-            channel: CR9C57YM6 # alma_changelog 
-            text: ${{ steps.slack-markdown-release-notes.outputs.text }}
+            channel: CR9C57YM6 # alma_changelog
+            text: "${{ steps.slack-markdown-release-notes.outputs.text }}"
             username: "${{ github.event.sender.login }}"
             icon_url: "${{ github.event.sender.avatar_url }}"