Specify time period in which deployment will be available (#1486)

Co-authored-by: Azat Safin <azsafin@provectus.com>

.github/workflows/branch-deploy.yml

@@ -104,4 +104,4 @@ jobs:
         with:
           issue-number: ${{ github.event.pull_request.number }}
           body: |
-            Custom deployment will be available at http://${{ needs.build.outputs.tag }}.kafka-ui.provectus.io
+            Custom deployment will be available at http://${{ needs.build.outputs.tag }}.kafka-ui.provectus.io in 5 minutes