slaprunner: parameterize the shared folder

In test nodes we put the software_root folder out of the webrunner so we
can keep it for the following tests. Except that the shared folder has
been introduced by default recently, and it is still inside the webrunner.

Thus, between 2 tests the webrunner is deleted, so the shared parts are too,
but not the SR folder (which is marked as completed). Then in the successive tests
the software release fails to build, or the insances fail to isntanciate.
35 jobs for feature/migrate-promise-to-plugin in 0 seconds
Status Job ID Name Coverage
  External
running SLAPOS-SR-TEST-LUKE-fix/caddy-frontend-kedifa-monitor

44557:28:44

canceled SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

252:06:23

failed SLAPOS-SR-TEST-LUKE-fix/caddy-frontend-kedifa-monitor

08:02:34

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

08:11:49

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

06:48:16

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

08:10:50

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

08:28:34

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

05:34:45

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

10:19:27

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

10:51:11

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

13:08:41

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

12:14:44

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

08:07:50

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

07:07:49

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

11:25:27

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

10:48:59

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

06:21:17

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

05:17:44

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

06:27:18

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

06:39:44

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

08:58:36

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

05:02:14

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

11:36:47

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

10:03:16

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

12:13:48

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

06:02:17

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

06:00:18

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

07:21:41

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

09:59:22

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

10:42:58

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

05:55:50

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

07:04:47

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

04:15:24

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

05:31:08

failed SlapOS.SoftwareReleases.IntegrationTest-luke/fix/caddy-frontend-kedifa-monitor

65:39:43