update second branch-builder to cover all optional inputs

.github/workflows/branch-builder.yml

@@ -22,9 +22,10 @@ jobs:
         with:
           channel: ${{ env.SLACK_CHANNEL_ID }}
           text: 'Test message from <https://github.com/${{ github.repository }}|`${{ github.repository }}`>:\n\nMessage sent from: <https://github.com/${{ github.repository }}/compare/main...${{ env.BRANCH_NAME }}|`${{ env.BRANCH_NAME }}`>\nWorkflow Log: <https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}|Run ${{ github.run_id }}>'
-      - name: Test Slack reply message
+      - name: Test Slack message with optional inputs specified (reply message + unfurl_links disabled)
         uses: ./
         with:
           channel: ${{ env.SLACK_CHANNEL_ID }}
           thread_ts: ${{ steps.basic-message.outputs.ts }}
-          text: 'Test reply with a link to unfurl: <https://www.ynab.com/|https://www.ynab.com/>'
+          text: 'Test reply with a link to unfurl (that should _not_ unfurl): <https://aus.youneedabudget.com/|YNAB AU Marketing Site>'
+          unfurl_links: false