Currently the observabilitySRE container smoke/acceptance tests use the same version of logstash

to lookup ES. This causes issues when a stack release goes out. Specifically logstash is bumped, but there is a lag until ES containers are ready.

We should perhaps use https://github.com/logstash-plugins/.ci/blob/1.x/logstash-versions.yml as a source of truth instead. Updating the version there will be better as we have process in place to not merge updates there until ES is ready.