The SonarQube update function (ct/sonarqube.sh) never deleted the
downloaded zip file (~200-500 MB) from /tmp after extraction. On LXC
containers with 4-8 GB disks, this accumulates with every update and
can eventually fill the disk.
Also add explicit cleanup in the install script instead of relying
solely on cleanup_lxc() pattern matching.
* fix sonarqube update version info (#10870)
* move version info update to another line and remove unnecessary messages
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Co-authored-by: Ronny Marx <r0mx@mailbox.org>