rollback nexus to version 3.34.1

Package Merge Request

The new Nexus 36.0.0-bb.0 version does not work with selinux. We had to back it out of the last BB 1.23.0 release.
This commit was cherry-picked from the release branch release-1.23.x

reference https://repo1.dso.mil/platform-one/big-bang/apps/developer-tools/nexus/-/issues/27