Setting right device permissions in the setup wizard

[jredrejo]

Summary

When provisioning a new device, if learner_can_login_with_no_password is set as true, the wizard must unset learner_can_edit_password (if not, it's defaulted to True in the Django model)

References

Closes: #8250

Reviewer guidance

Run the wizard following the steps described in #8250 . The process should finish correctly, without server errors.

Testing checklist

• Contributor has fully tested the PR manually
• [] If there are any front-end changes, before/after screenshots are included
• Critical user journeys are covered by Gherkin stories
• Critical and brittle code paths are covered by unit tests

PR process

• PR has the correct target branch and milestone
• PR has 'needs review' or 'work-in-progress' label
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• If this is an important user-facing change, PR or related issue has a 'changelog' label
• If this includes an internal dependency change, a link to the diff is provided

Reviewer checklist

• Automated test coverage is satisfactory
• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

[rtibbles]

code changes look good - @pcenov can you confirm the fix here?

[pcenov]

@rtibbles and @jredrejo - the fix is confirmed, awesome! :)