Reload crc NetworkManager in reproducer

[cescgina]

The fix for reproducer dns[1] does not seem to work in all instances.
NetworkManager was still overwriting the /etc/resolv.conf contents, so
this change reloads the service after changing the config to ensure it
does not modify the resolv.conf on reboot.

[1] #1637
As a pull request owner and reviewers, I checked that:

• Appropriate testing is done and actually running

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://review.rdoproject.org/zuul/buildset/95c7e2580aaa4e8e907cdc7a71a14f6a

✔️ noop SUCCESS in 0s
✔️ cifmw-pod-ansible-test SUCCESS in 8m 40s
✔️ cifmw-pod-pre-commit SUCCESS in 7m 16s
✔️ cifmw-molecule-libvirt_manager SUCCESS in 15m 48s
❌ cifmw-molecule-reproducer FAILURE in 18m 26s

[cescgina]

recheck

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://review.rdoproject.org/zuul/buildset/ef1e111cbb94458e883d6911b5f856e0

✔️ noop SUCCESS in 0s
✔️ cifmw-pod-ansible-test SUCCESS in 7m 50s
✔️ cifmw-pod-pre-commit SUCCESS in 7m 34s
✔️ cifmw-molecule-libvirt_manager SUCCESS in 15m 35s
❌ cifmw-molecule-reproducer FAILURE in 18m 36s

[lewisdenny]

/lgtm

[raukadah]

/approve

[openshift-ci]

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