[META] Increase test coverage for tests run during ./gradlew integTestRemote for release time tests against a Release Candidate

[cwperks]

Is your feature request related to a problem?

The security plugin has a rich suite of integration tests in the integrationTest source set. The tests in this source set are run with every PR on the repo which gives a great deal of confidence that changes submitted do not cause any regressions or unintended side effects.

There is a problem that these tests are not run at release-time, they are only run as a PR check. At release time, the build team runs the scripts/integtest.sh which runs tests against a target remote cluster. In this case the remote cluster is a cluster running with a release candidate build.

Security runs very few tests with this task. Security applies a filter on org.opensearch.security.sanity.tests.*IT which matches very few tests

What solution would you like?

I'm filing a META issue to track increasing this coverage so that more scenarios are covered when testing against an RC build which includes all plugins in the default distribution.