sysutils/rundeck3: Update to 3.2.8

ChangeLog: https://docs.rundeck.com/3.2.8/history/3_2_x/version-3.2.8.html

• Avoiding loading all plugins whenever a method needs to search for a plugin description (bp #6091)
• Fix an issue that caused job execution to get stuck inside a loop when an exception was thrown from a log event call (bp #6050)
• Fix #6065 plugin values should be shown in multivalued list (bp #6066)

PR: 247133
Submitted by: daniel.tihanyi@tetragir.com (maintainer)