component/trafficserver: fix LuaJIT integration

Fixes 50f6a557 (component/trafficserver: build Lua plugin., 2021-11-23)
LuaJIT has to be build as shared to be referenced by trafficserver
component, because the later is already build as shared.
Also fix a missing rpath
14 jobs for feat/erp5-random-activity-priority in 0 seconds
Status Job ID Name Coverage
  External
passed SlapOS.Eggs.UnitTest-Master.Python2

00:33:19

passed SlapOS.Eggs.UnitTest-Master.Python3

00:10:11

passed SlapOS.SlapRunner.ResilienceTest-Master

00:21:40

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

00:18:40

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python2

22:47:16

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python3

05:52:12

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

11:17:54

passed SlapOS.Eggs.UnitTest-Master.Python2

00:10:01

passed SlapOS.Eggs.UnitTest-Master.Python2

00:13:42

passed SlapOS.Eggs.UnitTest-Master.Python3

00:11:11

passed SlapOS.Eggs.UnitTest-Master.Python3

00:13:03

passed SlapOS.SlapRunner.ResilienceTest-Master

00:21:43

passed SlapOS.SlapRunner.ResilienceTest-Master

00:21:52

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

00:11:29