[0.8] Add bionic to PR validation on merge-to-queue (#500)

Add bionic to PR validation on merge-to-queue (#499)

(cherry picked from commit 778c94e)

Co-authored-by: GuyAv46 <47632673+GuyAv46@users.noreply.github.com>

Author: github-actions[bot]

.github/workflows/event-merge-to-queue.yml

@@ -75,6 +75,7 @@ jobs:
       - check-if-docs-only
       - jammy
       - focal
+      - bionic
       - bullseye
       - amazonlinux2
       - mariner2