Downgrade known bad containerd version during packaging tests (#89255)

Looks like `containerd` has been upgraded on the latest RHEL 9 CI
workers. This updated package includes `runc` 1.1.3 which seems to
include a bug which can cause a failure when trying to attach a terminal
to a running container. This is causing our Docker packaging tests to
fail when we attempt to do `docker exec --tty`. For now let's just add a
bit to our packaging test execution script to downgrade the package if
appropriate.

Closes #89247

.ci/scripts/packaging-test.sh

@@ -43,6 +43,13 @@ if [ -f "/etc/os-release" ] ; then
             sudo apt-get install -y --allow-downgrades lintian=2.15.0
         fi
     fi
+    if [[ "$ID" == "rhel" ]] ; then
+      # Downgrade containerd if necessary to work around runc bug
+      # See: https://github.com/opencontainers/runc/issues/3551
+      if containerd -version | grep -sF 1.6.7; then
+        sudo yum downgrade -y containerd.io
+      fi
+    fi
 else
     cat /etc/issue || true
 fi