pkg/debug: use correct libexecdir

[christoph-zededa]

this fixes that sshd-session cannot be found and therefore

1. debug container is not started
2. ssh server is not started

[rene]

LGTM.

[christoph-zededa]

collect-info failed:
https://github.com/lf-edge/eve/actions/runs/9893585532/job/27329096007?pr=4079#step:3:2497

reason I think is that lf-edge/eden#987 is not merged

still it does not explain why ssh fails: https://github.com/lf-edge/eve/actions/runs/9893585532/job/27329096007?pr=4079#step:3:2308 ...

[christoph-zededa]

Also I see:

 {"status":"Pulling from library/redis","id":"7"}
        {"errorDetail":{"message":"toomanyrequests: You have reached your pull rate limit. You may increase the limit by authenticating and upgrading: https://www.docker.com/increase-rate-limit"},"error":"toomanyrequests: You have reached your pull rate limit. You may increase the limit by authenticating and upgrading: https://www.docker.com/increase-rate-limit"}

[milan-zededa]

collect-info failed: https://github.com/lf-edge/eve/actions/runs/9893585532/job/27329096007?pr=4079#step:3:2497

reason I think is that lf-edge/eden#987 is not merged

still it does not explain why ssh fails: https://github.com/lf-edge/eve/actions/runs/9893585532/job/27329096007?pr=4079#step:3:2308 ...

The problem is not port 7777 collision, we do not have it in these buildjet runners.
Instead, the Linux kernel crashed which brought the qemu down. This happens from time to time so just ignore it:

        rebooted with reason Reboot reason - kernel crash (no kdump) - at 2024-07-11T15:33:19.66283075Z at 2024-07-11 15:33:19.66283075 +0000 UTC/n    testProc.go:84: time: 2024-07-11T15:34:17.937499703Z out: projects.ProcInfoFunc done with return: abnormal reboot: Reboot reason - kernel crash (no kdump) - at 2024-07-11T15:33:19.66283075Z

But we should investigate why smoke tests are failing (preferably before merging going forward..). It could be related to these ssh changes because we expect this to appear in the logs after sshing into EVE: https://github.com/lf-edge/eden/blob/master/tests/lim/testdata/log_test.txt#L6-L8
The test seems to timeout after waiting for the log, but I have not investigated this further...