Skip promotion if it fails, it seems to occur automatically now

[skip ci]

Author: ascopes

scripts/close-nexus-repository.sh

@@ -311,6 +311,6 @@ repository_id="$(find-correct-repository-id)"
 close-staging-repository "${repository_id}"
 wait-for-closure-to-end "${repository_id}"
 ensure-closure-succeeded "${repository_id}"
-trigger-drop-or-promote "${repository_id}"
+trigger-drop-or-promote "${repository_id}" || true
 
 echo -e "\e[1;32mRelease ${operation} for repository ${repository_id} completed. Have a nice day :-)\e[0m" >&2