Fail fast dra publish on errors (#6556)

This commit ensures that the DRA publish BK steps fails fast
when there is an error.

(cherry picked from commit 47c33fd)

.buildkite/scripts/steps/dra-publish.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -uo pipefail
+set -euo pipefail
 
 DRY_RUN="${DRA_DRY_RUN:=""}"
 WORKFLOW="${DRA_WORKFLOW:=""}"